12990595 has 4 divisors (see below), whose sum is σ = 15588720. Its totient is φ = 10392472.

The previous prime is 12990587. The next prime is 12990619. The reversal of 12990595 is 59509921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59509921 = 83 ⋅716987.

It is a cyclic number.

It is not a de Polignac number, because 12990595 - 2³ = 12990587 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1299055 + ... + 1299064.

It is an arithmetic number, because the mean of its divisors is an integer number (3897180).

Almost surely, 2^12990595 is an apocalyptic number.

12990595 is a deficient number, since it is larger than the sum of its proper divisors (2598125).

12990595 is an equidigital number, since it uses as much as digits as its factorization.

12990595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598124.

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 12990595 is about 3604.2468006506. The cubic root of 12990595 is about 235.0767517520.

The spelling of 12990595 in words is "twelve million, nine hundred ninety thousand, five hundred ninety-five".