156042789 has 16 divisors (see below), whose sum is σ = 238272000. Its totient is φ = 88982640.

The previous prime is 156042781. The next prime is 156042841. The reversal of 156042789 is 987240651.

It is not a de Polignac number, because 156042789 - 2³ = 156042781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156042789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156042781) 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 15 ways as a sum of consecutive naturals, for example, 3034 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (14892000).

Almost surely, 2^156042789 is an apocalyptic number.

It is an amenable number.

156042789 is a deficient number, since it is larger than the sum of its proper divisors (82229211).

156042789 is a wasteful number, since it uses less digits than its factorization.

156042789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15400.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 156042789 is about 12491.7088102469. The cubic root of 156042789 is about 538.3704751462.

The spelling of 156042789 in words is "one hundred fifty-six million, forty-two thousand, seven hundred eighty-nine".