111979148 has 12 divisors (see below), whose sum is σ = 196785120. Its totient is φ = 55754832.

The previous prime is 111979129. The next prime is 111979169. The reversal of 111979148 is 841979111.

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 3 ways as a sum of consecutive naturals, for example, 57611 + ... + 59522.

It is an arithmetic number, because the mean of its divisors is an integer number (16398760).

Almost surely, 2^111979148 is an apocalyptic number.

It is an amenable number.

111979148 is a deficient number, since it is larger than the sum of its proper divisors (84805972).

111979148 is a wasteful number, since it uses less digits than its factorization.

111979148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117376 (or 117374 counting only the distinct ones).

The product of its digits is 18144, while the sum is 41.

The square root of 111979148 is about 10582.0200340011. The cubic root of 111979148 is about 481.9985365221.

The spelling of 111979148 in words is "one hundred eleven million, nine hundred seventy-nine thousand, one hundred forty-eight".