111387136 has 40 divisors (see below), whose sum is σ = 254358720. Its totient is φ = 47735808.

The previous prime is 111387109. The next prime is 111387161. The reversal of 111387136 is 631783111.

It is a junction number, because it is equal to n+sod(n) for n = 111387098 and 111387107.

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, 11956 + ... + 19123.

It is an arithmetic number, because the mean of its divisors is an integer number (6358968).

Almost surely, 2^111387136 is an apocalyptic number.

111387136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111387136 is an abundant number, since it is smaller than the sum of its proper divisors (142971584).

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

111387136 is an frugal number, since it uses more digits than its factorization.

111387136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31104 (or 31088 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 111387136 is about 10554.0104225834. The cubic root of 111387136 is about 481.1476243469.

The spelling of 111387136 in words is "one hundred eleven million, three hundred eighty-seven thousand, one hundred thirty-six".