111390552 has 160 divisors (see below), whose sum is σ = 384199200. Its totient is φ = 29362176.

The previous prime is 111390547. The next prime is 111390583. The reversal of 111390552 is 255093111.

111390552 is a `hidden beast` number, since 11 + 13 + 90 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58024 + ... + 59912.

It is an arithmetic number, because the mean of its divisors is an integer number (2401245).

Almost surely, 2^111390552 is an apocalyptic number.

111390552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111390552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192099600).

111390552 is an abundant number, since it is smaller than the sum of its proper divisors (272808648).

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

111390552 is a wasteful number, since it uses less digits than its factorization.

111390552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 111390552 is about 10554.1722555585. The cubic root of 111390552 is about 481.1525428786.

The spelling of 111390552 in words is "one hundred eleven million, three hundred ninety thousand, five hundred fifty-two".