13012620 has 24 divisors (see below), whose sum is σ = 36435504. Its totient is φ = 3470016.

The previous prime is 13012609. The next prime is 13012669. The reversal of 13012620 is 2621031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13012620.

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 7 ways as a sum of consecutive naturals, for example, 108379 + ... + 108498.

It is an arithmetic number, because the mean of its divisors is an integer number (1518146).

Almost surely, 2^13012620 is an apocalyptic number.

13012620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012620 is an abundant number, since it is smaller than the sum of its proper divisors (23422884).

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

13012620 is a wasteful number, since it uses less digits than its factorization.

13012620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216889 (or 216887 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13012620 is about 3607.3009300584. The cubic root of 13012620 is about 235.2095309433.

Adding to 13012620 its reverse (2621031), we get a palindrome (15633651).

The spelling of 13012620 in words is "thirteen million, twelve thousand, six hundred twenty".