13000072 has 16 divisors (see below), whose sum is σ = 24604560. Its totient is φ = 6438864.

The previous prime is 13000069. The next prime is 13000081. The reversal of 13000072 is 27000031.

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 3 ways as a sum of consecutive naturals, for example, 6738 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (1537785).

Almost surely, 2^13000072 is an apocalyptic number.

It is an amenable number.

13000072 is a deficient number, since it is larger than the sum of its proper divisors (11604488).

13000072 is a wasteful number, since it uses less digits than its factorization.

13000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15300 (or 15296 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 13000072 is about 3605.5612600537. The cubic root of 13000072 is about 235.1339028638.

The spelling of 13000072 in words is "thirteen million, seventy-two", and thus it is an aban number and an uban number.