111540994 has 4 divisors (see below), whose sum is σ = 167311494. Its totient is φ = 55770496.

The previous prime is 111540937. The next prime is 111541009. The reversal of 111540994 is 499045111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499045111 = 107 ⋅4663973.

It can be written as a sum of positive squares in only one way, i.e., 109098025 + 2442969 = 10445^2 + 1563^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27885247 + ... + 27885250.

Almost surely, 2^111540994 is an apocalyptic number.

111540994 is a deficient number, since it is larger than the sum of its proper divisors (55770500).

111540994 is an equidigital number, since it uses as much as digits as its factorization.

111540994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55770499.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 111540994 is about 10561.2969847458. The cubic root of 111540994 is about 481.3690573150.

The spelling of 111540994 in words is "one hundred eleven million, five hundred forty thousand, nine hundred ninety-four".