156242039 has 8 divisors (see below), whose sum is σ = 160741152. Its totient is φ = 151800480.

The previous prime is 156242033. The next prime is 156242041. The reversal of 156242039 is 930242651.

It is a happy number.

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

It is not a de Polignac number, because 156242039 - 2²⁴ = 139464823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156241996 and 156242014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156242033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8852 + ... + 19769.

It is an arithmetic number, because the mean of its divisors is an integer number (20092644).

Almost surely, 2^156242039 is an apocalyptic number.

156242039 is a deficient number, since it is larger than the sum of its proper divisors (4499113).

156242039 is a wasteful number, since it uses less digits than its factorization.

156242039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28777.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 156242039 is about 12499.6815559437. The cubic root of 156242039 is about 538.5995249102.

The spelling of 156242039 in words is "one hundred fifty-six million, two hundred forty-two thousand, thirty-nine".