125665144 has 16 divisors (see below), whose sum is σ = 257042520. Its totient is φ = 57120480.

The previous prime is 125665093. The next prime is 125665147. The reversal of 125665144 is 441566521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125665147) 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, 713919 + ... + 714094.

Almost surely, 2^125665144 is an apocalyptic number.

It is an amenable number.

125665144 is an abundant number, since it is smaller than the sum of its proper divisors (131377376).

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

125665144 is a wasteful number, since it uses less digits than its factorization.

125665144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428030 (or 1428026 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 125665144 is about 11210.0465654697. The cubic root of 125665144 is about 500.8852902638.

The spelling of 125665144 in words is "one hundred twenty-five million, six hundred sixty-five thousand, one hundred forty-four".