162500231 has 2 divisors, whose sum is σ = 162500232. Its totient is φ = 162500230.

The previous prime is 162500201. The next prime is 162500251. The reversal of 162500231 is 132005261.

It is an a-pointer prime, because the next prime (162500251) can be obtained adding 162500231 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162500231 - 2⁶ = 162500167 is a prime.

It is a super-2 number, since 2×162500231² = 52812650150106722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162500201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81250115 + 81250116.

It is an arithmetic number, because the mean of its divisors is an integer number (81250116).

Almost surely, 2^162500231 is an apocalyptic number.

162500231 is a deficient number, since it is larger than the sum of its proper divisors (1).

162500231 is an equidigital number, since it uses as much as digits as its factorization.

162500231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 162500231 is about 12747.5578445442. The cubic root of 162500231 is about 545.6967001066.

Adding to 162500231 its reverse (132005261), we get a palindrome (294505492).

The spelling of 162500231 in words is "one hundred sixty-two million, five hundred thousand, two hundred thirty-one".