125110913 has 4 divisors (see below), whose sum is σ = 125482500. Its totient is φ = 124739328.

The previous prime is 125110903. The next prime is 125110933. The reversal of 125110913 is 319011521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319011521 = 37 ⋅8621933.

It can be written as a sum of positive squares in 2 ways, for example, as 67699984 + 57410929 = 8228^2 + 7577^2 .

It is a cyclic number.

It is not a de Polignac number, because 125110913 - 2¹⁸ = 124848769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125110903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185288 + ... + 185961.

It is an arithmetic number, because the mean of its divisors is an integer number (31370625).

Almost surely, 2^125110913 is an apocalyptic number.

It is an amenable number.

125110913 is a deficient number, since it is larger than the sum of its proper divisors (371587).

125110913 is an equidigital number, since it uses as much as digits as its factorization.

125110913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371586.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 125110913 is about 11185.2989678417. The cubic root of 125110913 is about 500.1478402822.

The spelling of 125110913 in words is "one hundred twenty-five million, one hundred ten thousand, nine hundred thirteen".