111979238 has 16 divisors (see below), whose sum is σ = 203256864. Its totient is φ = 45168000.

The previous prime is 111979229. The next prime is 111979243. The reversal of 111979238 is 832979111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111979195 and 111979204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235013 + ... + 235488.

It is an arithmetic number, because the mean of its divisors is an integer number (12703554).

Almost surely, 2^111979238 is an apocalyptic number.

111979238 is a deficient number, since it is larger than the sum of its proper divisors (91277626).

111979238 is a wasteful number, since it uses less digits than its factorization.

111979238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470527.

The product of its digits is 27216, while the sum is 41.

The square root of 111979238 is about 10582.0242864964. The cubic root of 111979238 is about 481.9986656529.

The spelling of 111979238 in words is "one hundred eleven million, nine hundred seventy-nine thousand, two hundred thirty-eight".