163230253 has 4 divisors (see below), whose sum is σ = 163497148. Its totient is φ = 162963360.

The previous prime is 163230251. The next prime is 163230257. The reversal of 163230253 is 352032361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84695209 + 78535044 = 9203^2 + 8862^2 .

It is a cyclic number.

It is not a de Polignac number, because 163230253 - 2¹ = 163230251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163230251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132528 + ... + 133753.

It is an arithmetic number, because the mean of its divisors is an integer number (40874287).

Almost surely, 2^163230253 is an apocalyptic number.

It is an amenable number.

163230253 is a deficient number, since it is larger than the sum of its proper divisors (266895).

163230253 is an equidigital number, since it uses as much as digits as its factorization.

163230253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266894.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 163230253 is about 12776.1595559855. The cubic root of 163230253 is about 546.5126487503.

The spelling of 163230253 in words is "one hundred sixty-three million, two hundred thirty thousand, two hundred fifty-three".