125538156 has 36 divisors (see below), whose sum is σ = 324716392. Its totient is φ = 40872384.

The previous prime is 125538143. The next prime is 125538167. The reversal of 125538156 is 651835521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×125538156² = 31519657223760672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 125538156.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39001 + ... + 42096.

Almost surely, 2^125538156 is an apocalyptic number.

It is an amenable number.

125538156 is an abundant number, since it is smaller than the sum of its proper divisors (199178236).

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

125538156 is a wasteful number, since it uses less digits than its factorization.

125538156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81150 (or 81145 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 125538156 is about 11204.3811074062. The cubic root of 125538156 is about 500.7165140581.

The spelling of 125538156 in words is "one hundred twenty-five million, five hundred thirty-eight thousand, one hundred fifty-six".