231552163 has 4 divisors (see below), whose sum is σ = 232024248. Its totient is φ = 231080080.

The previous prime is 231552161. The next prime is 231552193. The reversal of 231552163 is 361255132.

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

It is a cyclic number.

It is not a de Polignac number, because 231552163 - 2¹ = 231552161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231552161) 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, 235306 + ... + 236287.

It is an arithmetic number, because the mean of its divisors is an integer number (58006062).

Almost surely, 2^231552163 is an apocalyptic number.

231552163 is a deficient number, since it is larger than the sum of its proper divisors (472085).

231552163 is an equidigital number, since it uses as much as digits as its factorization.

231552163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472084.

The product of its digits is 5400, while the sum is 28.

The square root of 231552163 is about 15216.8381406914. The cubic root of 231552163 is about 614.0677377195.

The spelling of 231552163 in words is "two hundred thirty-one million, five hundred fifty-two thousand, one hundred sixty-three".