156159493 has 16 divisors (see below), whose sum is σ = 185057280. Its totient is φ = 128948400.

The previous prime is 156159481. The next prime is 156159517. The reversal of 156159493 is 394951651.

It is not a de Polignac number, because 156159493 - 2¹⁷ = 156028421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156159413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50358 + ... + 53368.

It is an arithmetic number, because the mean of its divisors is an integer number (11566080).

Almost surely, 2^156159493 is an apocalyptic number.

It is an amenable number.

156159493 is a deficient number, since it is larger than the sum of its proper divisors (28897787).

156159493 is a wasteful number, since it uses less digits than its factorization.

156159493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288.

The product of its digits is 145800, while the sum is 43.

The square root of 156159493 is about 12496.3791955910. The cubic root of 156159493 is about 538.5046569976.

The spelling of 156159493 in words is "one hundred fifty-six million, one hundred fifty-nine thousand, four hundred ninety-three".