111538240 has 56 divisors (see below), whose sum is σ = 289755072. Its totient is φ = 40558080.

The previous prime is 111538237. The next prime is 111538243. The reversal of 111538240 is 42835111.

It is an interprime number because it is at equal distance from previous prime (111538237) and next prime (111538243).

It is not an unprimeable number, because it can be changed into a prime (111538243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12324 + ... + 19363.

Almost surely, 2^111538240 is an apocalyptic number.

111538240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111538240 is an abundant number, since it is smaller than the sum of its proper divisors (178216832).

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

111538240 is a wasteful number, since it uses less digits than its factorization.

111538240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31715 (or 31705 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 111538240 is about 10561.1666022272. The cubic root of 111538240 is about 481.3650955390.

The spelling of 111538240 in words is "one hundred eleven million, five hundred thirty-eight thousand, two hundred forty".