125465639 has 8 divisors (see below), whose sum is σ = 136430112. Its totient is φ = 114688800.

The previous prime is 125465623. The next prime is 125465651. The reversal of 125465639 is 936564521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125465639 - 2⁴ = 125465623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125465596 and 125465605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125465609) 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, 45512 + ... + 48189.

It is an arithmetic number, because the mean of its divisors is an integer number (17053764).

Almost surely, 2^125465639 is an apocalyptic number.

125465639 is a deficient number, since it is larger than the sum of its proper divisors (10964473).

125465639 is a wasteful number, since it uses less digits than its factorization.

125465639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93817.

The product of its digits is 194400, while the sum is 41.

The square root of 125465639 is about 11201.1445397334. The cubic root of 125465639 is about 500.6200826770.

The spelling of 125465639 in words is "one hundred twenty-five million, four hundred sixty-five thousand, six hundred thirty-nine".