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125100101 = 722380141
BaseRepresentation
bin1110111010011…
…10000001000101
322201101202002002
413131032001011
5224011200401
620225155045
73046222220
oct735160105
9281352062
10125100101
1164685615
1235a8ba85
131cbc1439
14128865b7
15aeb1a6b
hex774e045

125100101 has 8 divisors (see below), whose sum is σ = 143614464. Its totient is φ = 106746480.

The previous prime is 125100077. The next prime is 125100103. The reversal of 125100101 is 101001521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125100101 - 26 = 125100037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125100103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38510 + ... + 41631.

It is an arithmetic number, because the mean of its divisors is an integer number (17951808).

Almost surely, 2125100101 is an apocalyptic number.

It is an amenable number.

125100101 is a deficient number, since it is larger than the sum of its proper divisors (18514363).

125100101 is an equidigital number, since it uses as much as digits as its factorization.

125100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80371.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 125100101 is about 11184.8156444351. The cubic root of 125100101 is about 500.1334323884.

Adding to 125100101 its reverse (101001521), we get a palindrome (226101622).

The spelling of 125100101 in words is "one hundred twenty-five million, one hundred thousand, one hundred one".

Divisors: 1 7 223 1561 80141 560987 17871443 125100101