111113554 has 4 divisors (see below), whose sum is σ = 166670334. Its totient is φ = 55556776.

The previous prime is 111113543. The next prime is 111113623. The reversal of 111113554 is 455311111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455311111 = 181 ⋅2515531.

It can be written as a sum of positive squares in only one way, i.e., 61199329 + 49914225 = 7823^2 + 7065^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27778387 + ... + 27778390.

Almost surely, 2^111113554 is an apocalyptic number.

111113554 is a deficient number, since it is larger than the sum of its proper divisors (55556780).

111113554 is an equidigital number, since it uses as much as digits as its factorization.

111113554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55556779.

The product of its digits is 300, while the sum is 22.

The square root of 111113554 is about 10541.0414096521. The cubic root of 111113554 is about 480.7533799988.

Adding to 111113554 its reverse (455311111), we get a palindrome (566424665).

The spelling of 111113554 in words is "one hundred eleven million, one hundred thirteen thousand, five hundred fifty-four".