1515225965 has 16 divisors (see below), whose sum is σ = 2087968320. Its totient is φ = 1043982720.

The previous prime is 1515225953. The next prime is 1515225973. The reversal of 1515225965 is 5695225151.

It is not a de Polignac number, because 1515225965 - 2⁴ = 1515225949 is a prime.

It is a congruent 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, 723944 + ... + 726033.

It is an arithmetic number, because the mean of its divisors is an integer number (130498020).

Almost surely, 2^1515225965 is an apocalyptic number.

It is an amenable number.

1515225965 is a deficient number, since it is larger than the sum of its proper divisors (572742355).

1515225965 is a wasteful number, since it uses less digits than its factorization.

1515225965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450012.

The product of its digits is 135000, while the sum is 41.

The square root of 1515225965 is about 38925.9035219480. The cubic root of 1515225965 is about 1148.5744061502.

The spelling of 1515225965 in words is "one billion, five hundred fifteen million, two hundred twenty-five thousand, nine hundred sixty-five".