111513893 has 4 divisors (see below), whose sum is σ = 114527820. Its totient is φ = 108499968.

The previous prime is 111513889. The next prime is 111513901. The reversal of 111513893 is 398315111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 398315111 = 103 ⋅3867137.

It can be written as a sum of positive squares in 2 ways, for example, as 58033924 + 53479969 = 7618^2 + 7313^2 .

It is a cyclic number.

It is not a de Polignac number, because 111513893 - 2² = 111513889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111513823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506908 + ... + 1506981.

It is an arithmetic number, because the mean of its divisors is an integer number (28631955).

Almost surely, 2^111513893 is an apocalyptic number.

It is an amenable number.

111513893 is a deficient number, since it is larger than the sum of its proper divisors (3013927).

111513893 is an equidigital number, since it uses as much as digits as its factorization.

111513893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013926.

The product of its digits is 3240, while the sum is 32.

The square root of 111513893 is about 10560.0138730969. The cubic root of 111513893 is about 481.3300682430.

The spelling of 111513893 in words is "one hundred eleven million, five hundred thirteen thousand, eight hundred ninety-three".