13271290 has 16 divisors (see below), whose sum is σ = 24471720. Its totient is φ = 5178880.

The previous prime is 13271287. The next prime is 13271309. The reversal of 13271290 is 9217231.

It can be written as a sum of positive squares in 4 ways, for example, as 3493161 + 9778129 = 1869^2 + 3127^2 .

It is a super-2 number, since 2×13271290² = 352254276528200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15775 + ... + 16594.

Almost surely, 2^13271290 is an apocalyptic number.

13271290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13271290 is a deficient number, since it is larger than the sum of its proper divisors (11200430).

13271290 is a wasteful number, since it uses less digits than its factorization.

13271290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32417.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 13271290 is about 3642.9781772610. The cubic root of 13271290 is about 236.7578457994.

The spelling of 13271290 in words is "thirteen million, two hundred seventy-one thousand, two hundred ninety".