13156490 has 16 divisors (see below), whose sum is σ = 24260040. Its totient is φ = 5134080.

The previous prime is 13156471. The next prime is 13156501. The reversal of 13156490 is 9465131.

It can be written as a sum of positive squares in 4 ways, for example, as 2845969 + 10310521 = 1687^2 + 3211^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15635 + ... + 16454.

Almost surely, 2^13156490 is an apocalyptic number.

13156490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13156490 is a deficient number, since it is larger than the sum of its proper divisors (11103550).

13156490 is a wasteful number, since it uses less digits than its factorization.

13156490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32137.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 13156490 is about 3627.1876157707. The cubic root of 13156490 is about 236.0731961982.

The spelling of 13156490 in words is "thirteen million, one hundred fifty-six thousand, four hundred ninety".