117385491145 has 12 divisors (see below), whose sum is σ = 152531680716. Its totient is φ = 86684669760.

The previous prime is 117385491133. The next prime is 117385491163. The reversal of 117385491145 is 541194583711.

It can be written as a sum of positive squares in 6 ways, for example, as 28707202624 + 88678288521 = 169432^2 + 297789^2 .

It is not a de Polignac number, because 117385491145 - 2⁷ = 117385491017 is a prime.

It is a super-2 number, since 2×117385491145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69458026 + ... + 69459715.

It is an arithmetic number, because the mean of its divisors is an integer number (12710973393).

Almost surely, 2^117385491145 is an apocalyptic number.

It is an amenable number.

117385491145 is a deficient number, since it is larger than the sum of its proper divisors (35146189571).

117385491145 is a wasteful number, since it uses less digits than its factorization.

117385491145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138917772 (or 138917759 counting only the distinct ones).

The product of its digits is 604800, while the sum is 49.

The spelling of 117385491145 in words is "one hundred seventeen billion, three hundred eighty-five million, four hundred ninety-one thousand, one hundred forty-five".