156116493 has 12 divisors (see below), whose sum is σ = 242848060. Its totient is φ = 96071616.

The previous prime is 156116453. The next prime is 156116497. The reversal of 156116493 is 394611651.

156116493 is a `hidden beast` number, since 1 + 5 + 6 + 1 + 1 + 649 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97180164 + 58936329 = 9858^2 + 7677^2 .

It is not a de Polignac number, because 156116493 - 2¹³ = 156108301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156116497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667048 + ... + 667281.

Almost surely, 2^156116493 is an apocalyptic number.

156116493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

156116493 is a deficient number, since it is larger than the sum of its proper divisors (86731567).

156116493 is a wasteful number, since it uses less digits than its factorization.

156116493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334348 (or 1334345 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 156116493 is about 12494.6585787688. The cubic root of 156116493 is about 538.4552250024.

The spelling of 156116493 in words is "one hundred fifty-six million, one hundred sixteen thousand, four hundred ninety-three".