156423423 has 8 divisors (see below), whose sum is σ = 224608048. Its totient is φ = 96260544.

The previous prime is 156423413. The next prime is 156423431. The reversal of 156423423 is 324324651.

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

It is not a de Polignac number, because 156423423 - 2⁸ = 156423167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156423413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005390 + ... + 2005467.

It is an arithmetic number, because the mean of its divisors is an integer number (28076006).

Almost surely, 2^156423423 is an apocalyptic number.

156423423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

156423423 is a deficient number, since it is larger than the sum of its proper divisors (68184625).

156423423 is a wasteful number, since it uses less digits than its factorization.

156423423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010873.

The product of its digits is 17280, while the sum is 30.

The square root of 156423423 is about 12506.9349962331. The cubic root of 156423423 is about 538.8078673781.

The spelling of 156423423 in words is "one hundred fifty-six million, four hundred twenty-three thousand, four hundred twenty-three".