1147312718 has 4 divisors (see below), whose sum is σ = 1720969080. Its totient is φ = 573656358.

The previous prime is 1147312693. The next prime is 1147312741. The reversal of 1147312718 is 8172137411.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 286828178 + ... + 286828181.

It is an arithmetic number, because the mean of its divisors is an integer number (430242270).

Almost surely, 2^1147312718 is an apocalyptic number.

1147312718 is a deficient number, since it is larger than the sum of its proper divisors (573656362).

1147312718 is an equidigital number, since it uses as much as digits as its factorization.

1147312718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573656361.

The product of its digits is 9408, while the sum is 35.

The square root of 1147312718 is about 33872.0049303256. The cubic root of 1147312718 is about 1046.8728479148.

The spelling of 1147312718 in words is "one billion, one hundred forty-seven million, three hundred twelve thousand, seven hundred eighteen".