111516442 has 4 divisors (see below), whose sum is σ = 167274666. Its totient is φ = 55758220.

The previous prime is 111516439. The next prime is 111516473. The reversal of 111516442 is 244615111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100220121 + 11296321 = 10011^2 + 3361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27879109 + ... + 27879112.

Almost surely, 2^111516442 is an apocalyptic number.

111516442 is a deficient number, since it is larger than the sum of its proper divisors (55758224).

111516442 is an equidigital number, since it uses as much as digits as its factorization.

111516442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55758223.

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

The square root of 111516442 is about 10560.1345635366. The cubic root of 111516442 is about 481.3337356515. Note that the first 3 decimals are identical.

The spelling of 111516442 in words is "one hundred eleven million, five hundred sixteen thousand, four hundred forty-two".