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125702041 = 257489113
BaseRepresentation
bin1110111111000…
…00111110011001
322202112022210011
413133200332121
5224134431131
620250121521
73054310153
oct737407631
9282468704
10125702041
1164a56893
12361202a1
132007240a
14129a1ad3
15b0800b1
hex77e0f99

125702041 has 4 divisors (see below), whose sum is σ = 126191412. Its totient is φ = 125212672.

The previous prime is 125702039. The next prime is 125702123. The reversal of 125702041 is 140207521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103612041 + 22090000 = 10179^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 125702041 - 21 = 125702039 is a prime.

It is a super-2 number, since 2×1257020412 = 31602006223131362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125702341) 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, 244300 + ... + 244813.

It is an arithmetic number, because the mean of its divisors is an integer number (31547853).

Almost surely, 2125702041 is an apocalyptic number.

It is an amenable number.

125702041 is a deficient number, since it is larger than the sum of its proper divisors (489371).

125702041 is an equidigital number, since it uses as much as digits as its factorization.

125702041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489370.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 125702041 is about 11211.6921559593. The cubic root of 125702041 is about 500.9343077174.

Adding to 125702041 its reverse (140207521), we get a palindrome (265909562).

The spelling of 125702041 in words is "one hundred twenty-five million, seven hundred two thousand, forty-one".

Divisors: 1 257 489113 125702041