163256434 has 16 divisors (see below), whose sum is σ = 267369696. Its totient is φ = 74145600.

The previous prime is 163256407. The next prime is 163256437. The reversal of 163256434 is 434652361.

163256434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163256434.

It is not an unprimeable number, because it can be changed into a prime (163256437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33514 + ... + 38074.

It is an arithmetic number, because the mean of its divisors is an integer number (16710606).

Almost surely, 2^163256434 is an apocalyptic number.

163256434 is a deficient number, since it is larger than the sum of its proper divisors (104113262).

163256434 is a wasteful number, since it uses less digits than its factorization.

163256434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6201.

The product of its digits is 51840, while the sum is 34.

The square root of 163256434 is about 12777.1841185764. The cubic root of 163256434 is about 546.5418661339.

The spelling of 163256434 in words is "one hundred sixty-three million, two hundred fifty-six thousand, four hundred thirty-four".