31160144459 has 4 divisors (see below), whose sum is σ = 31823126304. Its totient is φ = 30497162616.

The previous prime is 31160144423. The next prime is 31160144473. The reversal of 31160144459 is 95444106113.

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 31160144459 - 2²⁰ = 31159095883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31160144159) 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, 331490852 + ... + 331490945.

It is an arithmetic number, because the mean of its divisors is an integer number (7955781576).

Almost surely, 2^31160144459 is an apocalyptic number.

31160144459 is a deficient number, since it is larger than the sum of its proper divisors (662981845).

31160144459 is an equidigital number, since it uses as much as digits as its factorization.

31160144459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662981844.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 31160144459 in words is "thirty-one billion, one hundred sixty million, one hundred forty-four thousand, four hundred fifty-nine".