11521612 has 12 divisors (see below), whose sum is σ = 20253240. Its totient is φ = 5734976.

The previous prime is 11521607. The next prime is 11521633. The reversal of 11521612 is 21612511.

It is a self number, because there is not a number n which added to its sum of digits gives 11521612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5437 + ... + 7252.

It is an arithmetic number, because the mean of its divisors is an integer number (1687770).

Almost surely, 2^11521612 is an apocalyptic number.

It is an amenable number.

11521612 is a deficient number, since it is larger than the sum of its proper divisors (8731628).

11521612 is a wasteful number, since it uses less digits than its factorization.

11521612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920 (or 12918 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 11521612 is about 3394.3500114160. The cubic root of 11521612 is about 225.8591808157.

The spelling of 11521612 in words is "eleven million, five hundred twenty-one thousand, six hundred twelve".