125257881 has 8 divisors (see below), whose sum is σ = 190869184. Its totient is φ = 71575920.

The previous prime is 125257879. The next prime is 125257883. The reversal of 125257881 is 188752521.

It is an interprime number because it is at equal distance from previous prime (125257879) and next prime (125257883).

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

It is not a de Polignac number, because 125257881 - 2¹ = 125257879 is a prime.

It is a super-2 number, since 2×125257881² = 31379073505220322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125257883) 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, 2982310 + ... + 2982351.

It is an arithmetic number, because the mean of its divisors is an integer number (23858648).

Almost surely, 2^125257881 is an apocalyptic number.

It is an amenable number.

125257881 is a deficient number, since it is larger than the sum of its proper divisors (65611303).

125257881 is an equidigital number, since it uses as much as digits as its factorization.

125257881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964671.

The product of its digits is 44800, while the sum is 39.

The square root of 125257881 is about 11191.8667343746. The cubic root of 125257881 is about 500.3436051502.

The spelling of 125257881 in words is "one hundred twenty-five million, two hundred fifty-seven thousand, eight hundred eighty-one".