13073812 has 6 divisors (see below), whose sum is σ = 22879178. Its totient is φ = 6536904.

The previous prime is 13073791. The next prime is 13073813. The reversal of 13073812 is 21837031.

It can be written as a sum of positive squares in only one way, i.e., 11737476 + 1336336 = 3426^2 + 1156^2 .

It is a super-2 number, since 2×13073812² = 341849120422688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1634223 + ... + 1634230.

Almost surely, 2^13073812 is an apocalyptic number.

It is an amenable number.

13073812 is a deficient number, since it is larger than the sum of its proper divisors (9805366).

13073812 is a wasteful number, since it uses less digits than its factorization.

13073812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268457 (or 3268455 counting only the distinct ones).

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

The square root of 13073812 is about 3615.7726698453. The cubic root of 13073812 is about 235.5776463928.

The spelling of 13073812 in words is "thirteen million, seventy-three thousand, eight hundred twelve".