156442253 has 16 divisors (see below), whose sum is σ = 177923904. Its totient is φ = 136287360.

The previous prime is 156442243. The next prime is 156442259. The reversal of 156442253 is 352244651.

156442253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156442253 - 2²⁰ = 155393677 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 (156442259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24401 + ... + 30137.

It is an arithmetic number, because the mean of its divisors is an integer number (11120244).

Almost surely, 2^156442253 is an apocalyptic number.

It is an amenable number.

156442253 is a deficient number, since it is larger than the sum of its proper divisors (21481651).

156442253 is a wasteful number, since it uses less digits than its factorization.

156442253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852.

The product of its digits is 28800, while the sum is 32.

The square root of 156442253 is about 12507.6877559363. The cubic root of 156442253 is about 538.8294867853.

The spelling of 156442253 in words is "one hundred fifty-six million, four hundred forty-two thousand, two hundred fifty-three".