1139162918 has 4 divisors (see below), whose sum is σ = 1708744380. Its totient is φ = 569581458.

The previous prime is 1139162909. The next prime is 1139162933. The reversal of 1139162918 is 8192619311.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284790728 + ... + 284790731.

It is an arithmetic number, because the mean of its divisors is an integer number (427186095).

Almost surely, 2^1139162918 is an apocalyptic number.

1139162918 is a deficient number, since it is larger than the sum of its proper divisors (569581462).

1139162918 is an equidigital number, since it uses as much as digits as its factorization.

1139162918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569581461.

The product of its digits is 23328, while the sum is 41.

The square root of 1139162918 is about 33751.4876412878. The cubic root of 1139162918 is about 1044.3881763116.

The spelling of 1139162918 in words is "one billion, one hundred thirty-nine million, one hundred sixty-two thousand, nine hundred eighteen".