146168081 has 2 divisors, whose sum is σ = 146168082. Its totient is φ = 146168080.

The previous prime is 146168027. The next prime is 146168101. The reversal of 146168081 is 180861641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117180625 + 28987456 = 10825^2 + 5384^2 .

It is a cyclic number.

It is not a de Polignac number, because 146168081 - 2¹⁴ = 146151697 is a prime.

It is a super-2 number, since 2×146168081² = 42730215806445122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146138081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73084040 + 73084041.

It is an arithmetic number, because the mean of its divisors is an integer number (73084041).

Almost surely, 2^146168081 is an apocalyptic number.

It is an amenable number.

146168081 is a deficient number, since it is larger than the sum of its proper divisors (1).

146168081 is an equidigital number, since it uses as much as digits as its factorization.

146168081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 146168081 is about 12089.9992142266. Note that the first 3 decimals coincide. The cubic root of 146168081 is about 526.7657323572.

The spelling of 146168081 in words is "one hundred forty-six million, one hundred sixty-eight thousand, eighty-one".