111520090 has 16 divisors (see below), whose sum is σ = 218985120. Its totient is φ = 40552720.

The previous prime is 111520069. The next prime is 111520103. The reversal of 111520090 is 90025111.

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, 506800 + ... + 507019.

It is an arithmetic number, because the mean of its divisors is an integer number (13686570).

Almost surely, 2^111520090 is an apocalyptic number.

111520090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111520090 is a deficient number, since it is larger than the sum of its proper divisors (107465030).

111520090 is a wasteful number, since it uses less digits than its factorization.

111520090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013837.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 111520090 is about 10560.3072871958. The cubic root of 111520090 is about 481.3389841641.

The spelling of 111520090 in words is "one hundred eleven million, five hundred twenty thousand, ninety".