125538456 has 32 divisors (see below), whose sum is σ = 315854640. Its totient is φ = 41578368.

The previous prime is 125538451. The next prime is 125538493. The reversal of 125538456 is 654835521.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125538451) 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, 12891 + ... + 20426.

Almost surely, 2^125538456 is an apocalyptic number.

It is an amenable number.

125538456 is an abundant number, since it is smaller than the sum of its proper divisors (190316184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125538456 is a wasteful number, since it uses less digits than its factorization.

125538456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33483 (or 33479 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The square root of 125538456 is about 11204.3944950185. The cubic root of 125538456 is about 500.7169129138.

The spelling of 125538456 in words is "one hundred twenty-five million, five hundred thirty-eight thousand, four hundred fifty-six".