125115523 has 4 divisors (see below), whose sum is σ = 134739808. Its totient is φ = 115491240.

The previous prime is 125115517. The next prime is 125115527. The reversal of 125115523 is 325511521.

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

It is a cyclic number.

It is not a de Polignac number, because 125115523 - 2⁵ = 125115491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125115527) 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, 4812123 + ... + 4812148.

It is an arithmetic number, because the mean of its divisors is an integer number (33684952).

Almost surely, 2^125115523 is an apocalyptic number.

125115523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125115523 is a deficient number, since it is larger than the sum of its proper divisors (9624285).

125115523 is an equidigital number, since it uses as much as digits as its factorization.

125115523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624284.

The product of its digits is 1500, while the sum is 25.

The square root of 125115523 is about 11185.5050400060. The cubic root of 125115523 is about 500.1539832401.

The spelling of 125115523 in words is "one hundred twenty-five million, one hundred fifteen thousand, five hundred twenty-three".