1163312539 has 2 divisors, whose sum is σ = 1163312540. Its totient is φ = 1163312538.

The previous prime is 1163312537. The next prime is 1163312551. The reversal of 1163312539 is 9352133611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9352133611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1163312539 - 2¹ = 1163312537 is a prime.

Together with 1163312537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1163312537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581656269 + 581656270.

It is an arithmetic number, because the mean of its divisors is an integer number (581656270).

Almost surely, 2^1163312539 is an apocalyptic number.

1163312539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163312539 is an equidigital number, since it uses as much as digits as its factorization.

1163312539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 34.

The square root of 1163312539 is about 34107.3678110757. The cubic root of 1163312539 is about 1051.7167799968.

The spelling of 1163312539 in words is "one billion, one hundred sixty-three million, three hundred twelve thousand, five hundred thirty-nine".