13120472 has 8 divisors (see below), whose sum is σ = 24600900. Its totient is φ = 6560232.

The previous prime is 13120427. The next prime is 13120483. The reversal of 13120472 is 27402131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 820022 + ... + 820037.

Almost surely, 2^13120472 is an apocalyptic number.

It is an amenable number.

13120472 is a deficient number, since it is larger than the sum of its proper divisors (11480428).

13120472 is a wasteful number, since it uses less digits than its factorization.

13120472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640065 (or 1640061 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13120472 is about 3622.2192092694. The cubic root of 13120472 is about 235.8575699043.

The spelling of 13120472 in words is "thirteen million, one hundred twenty thousand, four hundred seventy-two".