13051812 has 24 divisors (see below), whose sum is σ = 30635136. Its totient is φ = 4324768.

The previous prime is 13051811. The next prime is 13051823. The reversal of 13051812 is 21815031.

13051812 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13051811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (1276464).

Almost surely, 2^13051812 is an apocalyptic number.

13051812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13051812 is an abundant number, since it is smaller than the sum of its proper divisors (17583324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13051812 is a wasteful number, since it uses less digits than its factorization.

13051812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 13051812 is about 3612.7291622816. The cubic root of 13051812 is about 235.4454325184.

Adding to 13051812 its reverse (21815031), we get a palindrome (34866843).

The spelling of 13051812 in words is "thirteen million, fifty-one thousand, eight hundred twelve".