111381804 has 30 divisors (see below), whose sum is σ = 291174884. Its totient is φ = 37127160.

The previous prime is 111381799. The next prime is 111381859. The reversal of 111381804 is 408183111.

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

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 9 ways as a sum of consecutive naturals, for example, 171562 + ... + 172209.

Almost surely, 2^111381804 is an apocalyptic number.

It is an amenable number.

111381804 is an abundant number, since it is smaller than the sum of its proper divisors (179793080).

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

111381804 is a wasteful number, since it uses less digits than its factorization.

111381804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343787 (or 343776 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 111381804 is about 10553.7578141627. The cubic root of 111381804 is about 481.1399468593.

The spelling of 111381804 in words is "one hundred eleven million, three hundred eighty-one thousand, eight hundred four".