163154231 has 2 divisors, whose sum is σ = 163154232. Its totient is φ = 163154230.

The previous prime is 163154227. The next prime is 163154263. The reversal of 163154231 is 132451361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163154231 - 2² = 163154227 is a prime.

It is a super-2 number, since 2×163154231² = 53238606186402722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163154231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163157231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81577115 + 81577116.

It is an arithmetic number, because the mean of its divisors is an integer number (81577116).

Almost surely, 2^163154231 is an apocalyptic number.

163154231 is a deficient number, since it is larger than the sum of its proper divisors (1).

163154231 is an equidigital number, since it uses as much as digits as its factorization.

163154231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 163154231 is about 12773.1840588007. The cubic root of 163154231 is about 546.4277922660.

The spelling of 163154231 in words is "one hundred sixty-three million, one hundred fifty-four thousand, two hundred thirty-one".