11531392 has 16 divisors (see below), whose sum is σ = 22972950. Its totient is φ = 5765632.

The previous prime is 11531371. The next prime is 11531407. The reversal of 11531392 is 29313511.

11531392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9388096 + 2143296 = 3064^2 + 1464^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44917 + ... + 45172.

Almost surely, 2^11531392 is an apocalyptic number.

It is an amenable number.

11531392 is a deficient number, since it is larger than the sum of its proper divisors (11441558).

11531392 is an frugal number, since it uses more digits than its factorization.

11531392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90103 (or 90091 counting only the distinct ones).

The product of its digits is 810, while the sum is 25.

The square root of 11531392 is about 3395.7903351061. The cubic root of 11531392 is about 225.9230688110.

The spelling of 11531392 in words is "eleven million, five hundred thirty-one thousand, three hundred ninety-two".