1118974031 has 4 divisors (see below), whose sum is σ = 1278827472. Its totient is φ = 959120592.

The previous prime is 1118973971. The next prime is 1118974039. The reversal of 1118974031 is 1304798111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1304798111 = 3221 ⋅405091.

It is a cyclic number.

It is not a de Polignac number, because 1118974031 - 2⁶ = 1118973967 is a prime.

It is a super-2 number, since 2×1118974031² = 2504205764104777922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118973982 and 1118974000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118974039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79926710 + ... + 79926723.

It is an arithmetic number, because the mean of its divisors is an integer number (319706868).

Almost surely, 2^1118974031 is an apocalyptic number.

1118974031 is a deficient number, since it is larger than the sum of its proper divisors (159853441).

1118974031 is an equidigital number, since it uses as much as digits as its factorization.

1118974031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159853440.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 1118974031 is about 33451.0692056323. The cubic root of 1118974031 is about 1038.1816200428.

The spelling of 1118974031 in words is "one billion, one hundred eighteen million, nine hundred seventy-four thousand, thirty-one".