111554983 has 4 divisors (see below), whose sum is σ = 113659848. Its totient is φ = 109450120.

The previous prime is 111554981. The next prime is 111554999. The reversal of 111554983 is 389455111.

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

It is a cyclic number.

It is not a de Polignac number, because 111554983 - 2¹ = 111554981 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 (111554981) 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, 1052353 + ... + 1052458.

It is an arithmetic number, because the mean of its divisors is an integer number (28414962).

Almost surely, 2^111554983 is an apocalyptic number.

111554983 is a deficient number, since it is larger than the sum of its proper divisors (2104865).

111554983 is an equidigital number, since it uses as much as digits as its factorization.

111554983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104864.

The product of its digits is 21600, while the sum is 37.

The square root of 111554983 is about 10561.9592405955. The cubic root of 111554983 is about 481.3891802313.

The spelling of 111554983 in words is "one hundred eleven million, five hundred fifty-four thousand, nine hundred eighty-three".