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125343101 = 139641777
BaseRepresentation
bin1110111100010…
…01010101111101
322201212002102002
413132021111331
5224041434401
620234312045
73051253532
oct736112575
9281762362
10125343101
1164831144
1235b88625
131cc77c20
141290ad89
15b00da6b
hex778957d

125343101 has 4 divisors (see below), whose sum is σ = 134984892. Its totient is φ = 115701312.

The previous prime is 125343079. The next prime is 125343107. The reversal of 125343101 is 101343521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101343521 = 934310847.

It can be written as a sum of positive squares in 2 ways, for example, as 74563225 + 50779876 = 8635^2 + 7126^2 .

It is a cyclic number.

It is not a de Polignac number, because 125343101 - 26 = 125343037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125343107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4820876 + ... + 4820901.

It is an arithmetic number, because the mean of its divisors is an integer number (33746223).

Almost surely, 2125343101 is an apocalyptic number.

It is an amenable number.

125343101 is a deficient number, since it is larger than the sum of its proper divisors (9641791).

125343101 is an equidigital number, since it uses as much as digits as its factorization.

125343101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9641790.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 125343101 is about 11195.6733160628. The cubic root of 125343101 is about 500.4570500831.

Adding to 125343101 its reverse (101343521), we get a palindrome (226686622).

The spelling of 125343101 in words is "one hundred twenty-five million, three hundred forty-three thousand, one hundred one".

Divisors: 1 13 9641777 125343101