162418231 has 2 divisors, whose sum is σ = 162418232. Its totient is φ = 162418230.

The previous prime is 162418219. The next prime is 162418247. The reversal of 162418231 is 132814261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162418231 - 2¹¹ = 162416183 is a prime.

It is a super-2 number, since 2×162418231² = 52759363522338722, 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 162418231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162418031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81209115 + 81209116.

It is an arithmetic number, because the mean of its divisors is an integer number (81209116).

Almost surely, 2^162418231 is an apocalyptic number.

162418231 is a deficient number, since it is larger than the sum of its proper divisors (1).

162418231 is an equidigital number, since it uses as much as digits as its factorization.

162418231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 162418231 is about 12744.3411363632. The cubic root of 162418231 is about 545.6048958100.

The spelling of 162418231 in words is "one hundred sixty-two million, four hundred eighteen thousand, two hundred thirty-one".