111390472 has 24 divisors (see below), whose sum is σ = 218340990. Its totient is φ = 53271680.

The previous prime is 111390469. The next prime is 111390473. The reversal of 111390472 is 274093111.

It can be written as a sum of positive squares in only one way, i.e., 69322276 + 42068196 = 8326^2 + 6486^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111390472.

It is not an unprimeable number, because it can be changed into a prime (111390473) 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 5 ways as a sum of consecutive naturals, for example, 8929 + ... + 17392.

Almost surely, 2^111390472 is an apocalyptic number.

It is an amenable number.

111390472 is a deficient number, since it is larger than the sum of its proper divisors (106950518).

111390472 is a wasteful number, since it uses less digits than its factorization.

111390472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26373 (or 26346 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 111390472 is about 10554.1684655874. The cubic root of 111390472 is about 481.1524276917.

The spelling of 111390472 in words is "one hundred eleven million, three hundred ninety thousand, four hundred seventy-two".