13161472 has 22 divisors (see below), whose sum is σ = 26312138. Its totient is φ = 6580224.

The previous prime is 13161431. The next prime is 13161487. The reversal of 13161472 is 27416131.

It can be written as a sum of positive squares in only one way, i.e., 9834496 + 3326976 = 3136^2 + 1824^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5403 + ... + 7450.

Almost surely, 2^13161472 is an apocalyptic number.

It is an amenable number.

13161472 is a deficient number, since it is larger than the sum of its proper divisors (13150666).

13161472 is an equidigital number, since it uses as much as digits as its factorization.

13161472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12873 (or 12855 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 13161472 is about 3627.8743087378. The cubic root of 13161472 is about 236.1029905745.

The spelling of 13161472 in words is "thirteen million, one hundred sixty-one thousand, four hundred seventy-two".