156943933 has 16 divisors (see below), whose sum is σ = 167864320. Its totient is φ = 146313216.

The previous prime is 156943931. The next prime is 156943939. The reversal of 156943933 is 339349651.

It is a cyclic number.

It is not a de Polignac number, because 156943933 - 2¹ = 156943931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156943933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156943931) 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, 465541 + ... + 465877.

It is an arithmetic number, because the mean of its divisors is an integer number (10491520).

Almost surely, 2^156943933 is an apocalyptic number.

It is an amenable number.

156943933 is a deficient number, since it is larger than the sum of its proper divisors (10920387).

156943933 is a wasteful number, since it uses less digits than its factorization.

156943933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its digits is 262440, while the sum is 43.

The square root of 156943933 is about 12527.7265694938. The cubic root of 156943933 is about 539.4048461290.

The spelling of 156943933 in words is "one hundred fifty-six million, nine hundred forty-three thousand, nine hundred thirty-three".