125240685857 has 8 divisors (see below), whose sum is σ = 143136877632. Its totient is φ = 107345660400.

The previous prime is 125240685847. The next prime is 125240685917. The reversal of 125240685857 is 758586042521.

It is a happy number.

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 125240685857 - 2¹⁴ = 125240669473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125240685799 and 125240685808.

It is not an unprimeable number, because it can be changed into a prime (125240685847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47894 + ... + 502767.

It is an arithmetic number, because the mean of its divisors is an integer number (17892109704).

Almost surely, 2^125240685857 is an apocalyptic number.

It is an amenable number.

125240685857 is a deficient number, since it is larger than the sum of its proper divisors (17896191775).

125240685857 is an equidigital number, since it uses as much as digits as its factorization.

125240685857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583159.

The product of its (nonzero) digits is 5376000, while the sum is 53.

The spelling of 125240685857 in words is "one hundred twenty-five billion, two hundred forty million, six hundred eighty-five thousand, eight hundred fifty-seven".