163623225 has 48 divisors (see below), whose sum is σ = 278553600. Its totient is φ = 84717120.

The previous prime is 163623199. The next prime is 163623241. The reversal of 163623225 is 522326361.

It is not a de Polignac number, because 163623225 - 2¹¹ = 163621177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163623192 and 163623201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455596 + ... + 455954.

It is an arithmetic number, because the mean of its divisors is an integer number (5803200).

Almost surely, 2^163623225 is an apocalyptic number.

163623225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163623225 is a deficient number, since it is larger than the sum of its proper divisors (114930375).

163623225 is a wasteful number, since it uses less digits than its factorization.

163623225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 529 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 163623225 is about 12791.5294238023. The cubic root of 163623225 is about 546.9508682770.

Adding to 163623225 its reverse (522326361), we get a palindrome (685949586).

The spelling of 163623225 in words is "one hundred sixty-three million, six hundred twenty-three thousand, two hundred twenty-five".