156189342 has 16 divisors (see below), whose sum is σ = 312673680. Its totient is φ = 52013952.

The previous prime is 156189337. The next prime is 156189349. The reversal of 156189342 is 243981651.

156189342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156189342² = 48790221108785928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 156189342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156189349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5083 + ... + 18390.

It is an arithmetic number, because the mean of its divisors is an integer number (19542105).

Almost surely, 2^156189342 is an apocalyptic number.

156189342 is an abundant number, since it is smaller than the sum of its proper divisors (156484338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156189342 is a wasteful number, since it uses less digits than its factorization.

156189342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24587.

The product of its digits is 51840, while the sum is 39.

The square root of 156189342 is about 12497.5734444731. The cubic root of 156189342 is about 538.5389655138.

The spelling of 156189342 in words is "one hundred fifty-six million, one hundred eighty-nine thousand, three hundred forty-two".