111631396 has 24 divisors (see below), whose sum is σ = 198084600. Its totient is φ = 55041792.

The previous prime is 111631391. The next prime is 111631423. The reversal of 111631396 is 693136111.

It can be written as a sum of positive squares in 4 ways, for example, as 624100 + 111007296 = 790^2 + 10536^2 .

It is not an unprimeable number, because it can be changed into a prime (111631391) by changing a digit.

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, 92976 + ... + 94168.

It is an arithmetic number, because the mean of its divisors is an integer number (8253525).

Almost surely, 2^111631396 is an apocalyptic number.

It is an amenable number.

111631396 is a deficient number, since it is larger than the sum of its proper divisors (86453204).

111631396 is a wasteful number, since it uses less digits than its factorization.

111631396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503 (or 1501 counting only the distinct ones).

The product of its digits is 2916, while the sum is 31.

The square root of 111631396 is about 10565.5759899780. The cubic root of 111631396 is about 481.4990692288.

The spelling of 111631396 in words is "one hundred eleven million, six hundred thirty-one thousand, three hundred ninety-six".