111453139 has 24 divisors (see below), whose sum is σ = 139058720. Its totient is φ = 87422976.

The previous prime is 111453137. The next prime is 111453149. The reversal of 111453139 is 931354111.

It is not a de Polignac number, because 111453139 - 2¹ = 111453137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111453137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74107 + ... + 75595.

Almost surely, 2^111453139 is an apocalyptic number.

111453139 is a deficient number, since it is larger than the sum of its proper divisors (27605581).

111453139 is a wasteful number, since it uses less digits than its factorization.

111453139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1550 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 111453139 is about 10557.1368751191. The cubic root of 111453139 is about 481.2426410524.

The spelling of 111453139 in words is "one hundred eleven million, four hundred fifty-three thousand, one hundred thirty-nine".