156042 has 12 divisors (see below), whose sum is σ = 338130. Its totient is φ = 52008.

The previous prime is 156041. The next prime is 156059. The reversal of 156042 is 240651.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 136161 + 19881 = 369^2 + 141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 8669 = 156042 / (1 + 5 + 6 + 0 + 4 + 2).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 156042.

It is not an unprimeable number, because it can be changed into a prime (156041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4317 + ... + 4352.

2¹⁵⁶⁰⁴² is an apocalyptic number.

156042 is an abundant number, since it is smaller than the sum of its proper divisors (182088).

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

156042 is a wasteful number, since it uses less digits than its factorization.

156042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8677 (or 8674 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 156042 is about 395.0215184012. The cubic root of 156042 is about 53.8369567756.

Adding to 156042 its reverse (240651), we get a palindrome (396693).

The spelling of 156042 in words is "one hundred fifty-six thousand, forty-two".