163256423 has 32 divisors (see below), whose sum is σ = 196162560. Its totient is φ = 134184960.

The previous prime is 163256407. The next prime is 163256437. The reversal of 163256423 is 324652361.

It is a cyclic number.

It is not a de Polignac number, because 163256423 - 2⁴ = 163256407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163256423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163256453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635111 + ... + 635367.

It is an arithmetic number, because the mean of its divisors is an integer number (6130080).

Almost surely, 2^163256423 is an apocalyptic number.

163256423 is a deficient number, since it is larger than the sum of its proper divisors (32906137).

163256423 is a wasteful number, since it uses less digits than its factorization.

163256423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its digits is 25920, while the sum is 32.

The square root of 163256423 is about 12777.1836881216. The cubic root of 163256423 is about 546.5418538588.

The spelling of 163256423 in words is "one hundred sixty-three million, two hundred fifty-six thousand, four hundred twenty-three".