163023261 has 16 divisors (see below), whose sum is σ = 221876928. Its totient is φ = 106444800.

The previous prime is 163023253. The next prime is 163023271. The reversal of 163023261 is 162320361.

It is a happy number.

It is not a de Polignac number, because 163023261 - 2³ = 163023253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163023271) 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, 34141 + ... + 38621.

It is an arithmetic number, because the mean of its divisors is an integer number (13867308).

Almost surely, 2^163023261 is an apocalyptic number.

It is an amenable number.

163023261 is a deficient number, since it is larger than the sum of its proper divisors (58853667).

163023261 is a wasteful number, since it uses less digits than its factorization.

163023261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 163023261 is about 12768.0562733722. The cubic root of 163023261 is about 546.2815404536.

The spelling of 163023261 in words is "one hundred sixty-three million, twenty-three thousand, two hundred sixty-one".