156221153 has 8 divisors (see below), whose sum is σ = 172967520. Its totient is φ = 139898880.

The previous prime is 156221113. The next prime is 156221159. The reversal of 156221153 is 351122651.

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

It is not a de Polignac number, because 156221153 - 2¹² = 156217057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156221159) 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, 105248 + ... + 106721.

It is an arithmetic number, because the mean of its divisors is an integer number (21620940).

Almost surely, 2^156221153 is an apocalyptic number.

It is an amenable number.

156221153 is a deficient number, since it is larger than the sum of its proper divisors (16746367).

156221153 is a wasteful number, since it uses less digits than its factorization.

156221153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212047.

The product of its digits is 1800, while the sum is 26.

The square root of 156221153 is about 12498.8460667375. The cubic root of 156221153 is about 538.5755243466.

The spelling of 156221153 in words is "one hundred fifty-six million, two hundred twenty-one thousand, one hundred fifty-three".