11139864 has 32 divisors (see below), whose sum is σ = 28531440. Its totient is φ = 3622400.

The previous prime is 11139859. The next prime is 11139899. The reversal of 11139864 is 46893111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4677 + ... + 6644.

Almost surely, 2^11139864 is an apocalyptic number.

It is an amenable number.

11139864 is an abundant number, since it is smaller than the sum of its proper divisors (17391576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11139864 is a wasteful number, since it uses less digits than its factorization.

11139864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371 (or 11367 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 11139864 is about 3337.6434800619. The cubic root of 11139864 is about 223.3366322128.

The spelling of 11139864 in words is "eleven million, one hundred thirty-nine thousand, eight hundred sixty-four".