11631572 has 24 divisors (see below), whose sum is σ = 22122240. Its totient is φ = 5330880.

The previous prime is 11631559. The next prime is 11631589. The reversal of 11631572 is 27513611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113 + ... + 4824.

It is an arithmetic number, because the mean of its divisors is an integer number (921760).

Almost surely, 2^11631572 is an apocalyptic number.

It is an amenable number.

11631572 is a deficient number, since it is larger than the sum of its proper divisors (10490668).

11631572 is a wasteful number, since it uses less digits than its factorization.

11631572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991 (or 4989 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 11631572 is about 3410.5090529128. The cubic root of 11631572 is about 226.5754255995.

The spelling of 11631572 in words is "eleven million, six hundred thirty-one thousand, five hundred seventy-two".