163315623 has 16 divisors (see below), whose sum is σ = 222190560. Its totient is φ = 106681344.

The previous prime is 163315613. The next prime is 163315703. The reversal of 163315623 is 326513361.

It is a happy number.

It is not a de Polignac number, because 163315623 - 2¹⁴ = 163299239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163315613) 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, 27465 + ... + 32877.

It is an arithmetic number, because the mean of its divisors is an integer number (13886910).

Almost surely, 2^163315623 is an apocalyptic number.

163315623 is a deficient number, since it is larger than the sum of its proper divisors (58874937).

163315623 is a wasteful number, since it uses less digits than its factorization.

163315623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618.

The product of its digits is 9720, while the sum is 30.

The square root of 163315623 is about 12779.5001075942. The cubic root of 163315623 is about 546.6079081617.

Adding to 163315623 its reverse (326513361), we get a palindrome (489828984).

The spelling of 163315623 in words is "one hundred sixty-three million, three hundred fifteen thousand, six hundred twenty-three".