11139818 has 8 divisors (see below), whose sum is σ = 16746912. Its totient is φ = 5557516.

The previous prime is 11139809. The next prime is 11139827. The reversal of 11139818 is 81893111.

It is an interprime number because it is at equal distance from previous prime (11139809) and next prime (11139827).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030 + ... + 6897.

It is an arithmetic number, because the mean of its divisors is an integer number (2093364).

Almost surely, 2^11139818 is an apocalyptic number.

11139818 is a deficient number, since it is larger than the sum of its proper divisors (5607094).

11139818 is a wasteful number, since it uses less digits than its factorization.

11139818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12396.

The product of its digits is 1728, while the sum is 32.

The square root of 11139818 is about 3337.6365889653. The cubic root of 11139818 is about 223.3363248034.

The spelling of 11139818 in words is "eleven million, one hundred thirty-nine thousand, eight hundred eighteen".