11139952 has 20 divisors (see below), whose sum is σ = 21828960. Its totient is φ = 5506688.

The previous prime is 11139949. The next prime is 11139959. The reversal of 11139952 is 25993111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11139959) 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, 2488 + ... + 5335.

It is an arithmetic number, because the mean of its divisors is an integer number (1091448).

Almost surely, 2^11139952 is an apocalyptic number.

It is an amenable number.

11139952 is a deficient number, since it is larger than the sum of its proper divisors (10689008).

11139952 is an equidigital number, since it uses as much as digits as its factorization.

11139952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7920 (or 7914 counting only the distinct ones).

The product of its digits is 2430, while the sum is 31.

The square root of 11139952 is about 3337.6566629898. The cubic root of 11139952 is about 223.3372202982.

The spelling of 11139952 in words is "eleven million, one hundred thirty-nine thousand, nine hundred fifty-two".