11147972 has 36 divisors (see below), whose sum is σ = 22165248. Its totient is φ = 4897200.

The previous prime is 11147953. The next prime is 11148001. The reversal of 11147972 is 27974111.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14633 + ... + 15375.

Almost surely, 2^11147972 is an apocalyptic number.

It is an amenable number.

11147972 is a deficient number, since it is larger than the sum of its proper divisors (11017276).

11147972 is a wasteful number, since it uses less digits than its factorization.

11147972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 787 counting only the distinct ones).

The product of its digits is 3528, while the sum is 32.

The square root of 11147972 is about 3338.8578885601. The cubic root of 11147972 is about 223.3908032592.

The spelling of 11147972 in words is "eleven million, one hundred forty-seven thousand, nine hundred seventy-two".