11387138 has 8 divisors (see below), whose sum is σ = 19520832. Its totient is φ = 4880196.

The previous prime is 11387087. The next prime is 11387143. The reversal of 11387138 is 83178311.

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, 406670 + ... + 406697.

It is an arithmetic number, because the mean of its divisors is an integer number (2440104).

Almost surely, 2^11387138 is an apocalyptic number.

11387138 is a deficient number, since it is larger than the sum of its proper divisors (8133694).

11387138 is an equidigital number, since it uses as much as digits as its factorization.

11387138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813376.

The product of its digits is 4032, while the sum is 32.

The square root of 11387138 is about 3374.4833678654. The cubic root of 11387138 is about 224.9770379859.

The spelling of 11387138 in words is "eleven million, three hundred eighty-seven thousand, one hundred thirty-eight".