1160323721 has 4 divisors (see below), whose sum is σ = 1162128912. Its totient is φ = 1158518532.

The previous prime is 1160323709. The next prime is 1160323771. The reversal of 1160323721 is 1273230611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1160323721 - 2³⁰ = 86581897 is a prime.

It is a super-2 number, since 2×1160323721² = 2692702275030571682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1160323771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901631 + ... + 902916.

It is an arithmetic number, because the mean of its divisors is an integer number (290532228).

Almost surely, 2^1160323721 is an apocalyptic number.

It is an amenable number.

1160323721 is a deficient number, since it is larger than the sum of its proper divisors (1805191).

1160323721 is an equidigital number, since it uses as much as digits as its factorization.

1160323721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805190.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1160323721 is about 34063.5247882541. The cubic root of 1160323721 is about 1050.8153065986.

The spelling of 1160323721 in words is "one billion, one hundred sixty million, three hundred twenty-three thousand, seven hundred twenty-one".