111552140 has 24 divisors (see below), whose sum is σ = 267725472. Its totient is φ = 38246400.

The previous prime is 111552127. The next prime is 111552143. The reversal of 111552140 is 41255111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (111552143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398261 + ... + 398540.

It is an arithmetic number, because the mean of its divisors is an integer number (11155228).

Almost surely, 2^111552140 is an apocalyptic number.

111552140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111552140 is an abundant number, since it is smaller than the sum of its proper divisors (156173332).

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

111552140 is a wasteful number, since it uses less digits than its factorization.

111552140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796817 (or 796815 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 111552140 is about 10561.8246529660. The cubic root of 111552140 is about 481.3850907649.

The spelling of 111552140 in words is "one hundred eleven million, five hundred fifty-two thousand, one hundred forty".