125987465 has 16 divisors (see below), whose sum is σ = 155400336. Its totient is φ = 97996800.

The previous prime is 125987417. The next prime is 125987473. The reversal of 125987465 is 564789521.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 61795321 + 64192144 = 7861^2 + 8012^2 .

It is not a de Polignac number, because 125987465 - 2⁸ = 125987209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71495 + ... + 73235.

It is an arithmetic number, because the mean of its divisors is an integer number (9712521).

Almost surely, 2^125987465 is an apocalyptic number.

It is an amenable number.

125987465 is a deficient number, since it is larger than the sum of its proper divisors (29412871).

125987465 is a wasteful number, since it uses less digits than its factorization.

125987465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140.

The product of its digits is 604800, while the sum is 47.

The square root of 125987465 is about 11224.4137931564. The cubic root of 125987465 is about 501.3131681595.

The spelling of 125987465 in words is "one hundred twenty-five million, nine hundred eighty-seven thousand, four hundred sixty-five".