168155023 has 2 divisors, whose sum is σ = 168155024. Its totient is φ = 168155022.

The previous prime is 168155011. The next prime is 168155027. The reversal of 168155023 is 320551861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168155023 - 2⁵ = 168154991 is a prime.

It is a super-2 number, since 2×168155023² = 56552223520261058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168155027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84077511 + 84077512.

It is an arithmetic number, because the mean of its divisors is an integer number (84077512).

Almost surely, 2^168155023 is an apocalyptic number.

168155023 is a deficient number, since it is larger than the sum of its proper divisors (1).

168155023 is an equidigital number, since it uses as much as digits as its factorization.

168155023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 168155023 is about 12967.4601599542. The cubic root of 168155023 is about 551.9545040130.

The spelling of 168155023 in words is "one hundred sixty-eight million, one hundred fifty-five thousand, twenty-three".