13115212 has 24 divisors (see below), whose sum is σ = 25139520. Its totient is φ = 5937360.

The previous prime is 13115197. The next prime is 13115227. The reversal of 13115212 is 21251131.

It is an interprime number because it is at equal distance from previous prime (13115197) and next prime (13115227).

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 in 7 ways as a sum of consecutive naturals, for example, 14839 + ... + 15697.

It is an arithmetic number, because the mean of its divisors is an integer number (1047480).

Almost surely, 2^13115212 is an apocalyptic number.

It is an amenable number.

13115212 is a deficient number, since it is larger than the sum of its proper divisors (12024308).

13115212 is a wasteful number, since it uses less digits than its factorization.

13115212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1219 counting only the distinct ones).

The product of its digits is 60, while the sum is 16.

The square root of 13115212 is about 3621.4930622604. The cubic root of 13115212 is about 235.8260472415.

Adding to 13115212 its reverse (21251131), we get a palindrome (34366343).

The spelling of 13115212 in words is "thirteen million, one hundred fifteen thousand, two hundred twelve".