125288136 has 24 divisors (see below), whose sum is σ = 339322230. Its totient is φ = 41762688.

The previous prime is 125288129. The next prime is 125288171. The reversal of 125288136 is 631882521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 75585636 + 49702500 = 8694^2 + 7050^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 125288136.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 869985 + ... + 870128.

Almost surely, 2^125288136 is an apocalyptic number.

It is an amenable number.

125288136 is an abundant number, since it is smaller than the sum of its proper divisors (214034094).

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

125288136 is a wasteful number, since it uses less digits than its factorization.

125288136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740125 (or 1740118 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 125288136 is about 11193.2183039553. The cubic root of 125288136 is about 500.3838865202.

The spelling of 125288136 in words is "one hundred twenty-five million, two hundred eighty-eight thousand, one hundred thirty-six".