11531612 has 12 divisors (see below), whose sum is σ = 20208720. Its totient is φ = 5757696.

The previous prime is 11531567. The next prime is 11531617. The reversal of 11531612 is 21613511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2108 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (1684060).

Almost surely, 2^11531612 is an apocalyptic number.

It is an amenable number.

11531612 is a deficient number, since it is larger than the sum of its proper divisors (8677108).

11531612 is a wasteful number, since it uses less digits than its factorization.

11531612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060 (or 4058 counting only the distinct ones).

The product of its digits is 180, while the sum is 20.

The square root of 11531612 is about 3395.8227279998. The cubic root of 11531612 is about 225.9245055488.

The spelling of 11531612 in words is "eleven million, five hundred thirty-one thousand, six hundred twelve".