163322231 has 2 divisors, whose sum is σ = 163322232. Its totient is φ = 163322230.

The previous prime is 163322219. The next prime is 163322249. The reversal of 163322231 is 132223361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163322231 - 2¹⁴ = 163305847 is a prime.

It is a super-2 number, since 2×163322231² = 53348302277634722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 163322197 and 163322206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163322431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81661115 + 81661116.

It is an arithmetic number, because the mean of its divisors is an integer number (81661116).

Almost surely, 2^163322231 is an apocalyptic number.

163322231 is a deficient number, since it is larger than the sum of its proper divisors (1).

163322231 is an equidigital number, since it uses as much as digits as its factorization.

163322231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 163322231 is about 12779.7586440433. The cubic root of 163322231 is about 546.6152802597.

Adding to 163322231 its reverse (132223361), we get a palindrome (295545592).

The spelling of 163322231 in words is "one hundred sixty-three million, three hundred twenty-two thousand, two hundred thirty-one".