156163261 has 8 divisors (see below), whose sum is σ = 171529920. Its totient is φ = 141511392.

The previous prime is 156163243. The next prime is 156163277. The reversal of 156163261 is 162361651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156163261 - 2²¹ = 154066109 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 (156163211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178240 + ... + 179113.

It is an arithmetic number, because the mean of its divisors is an integer number (21441240).

Almost surely, 2^156163261 is an apocalyptic number.

It is an amenable number.

156163261 is a deficient number, since it is larger than the sum of its proper divisors (15366659).

156163261 is a wasteful number, since it uses less digits than its factorization.

156163261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357395.

The product of its digits is 6480, while the sum is 31.

The square root of 156163261 is about 12496.5299583524. The cubic root of 156163261 is about 538.5089881875.

The spelling of 156163261 in words is "one hundred fifty-six million, one hundred sixty-three thousand, two hundred sixty-one".