163504023 has 16 divisors (see below), whose sum is σ = 228082176. Its totient is φ = 104077760.

The previous prime is 163504021. The next prime is 163504027. The reversal of 163504023 is 320405361.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 163504023 - 2¹ = 163504021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163503984 and 163504002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163504021) 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, 8361 + ... + 19922.

It is an arithmetic number, because the mean of its divisors is an integer number (14255136).

Almost surely, 2^163504023 is an apocalyptic number.

163504023 is a deficient number, since it is larger than the sum of its proper divisors (64578153).

163504023 is a wasteful number, since it uses less digits than its factorization.

163504023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28374.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 163504023 is about 12786.8691633253. The cubic root of 163504023 is about 546.8180153435.

Adding to 163504023 its reverse (320405361), we get a palindrome (483909384).

The spelling of 163504023 in words is "one hundred sixty-three million, five hundred four thousand, twenty-three".