146168257 has 2 divisors, whose sum is σ = 146168258. Its totient is φ = 146168256.

The previous prime is 146168221. The next prime is 146168291. The reversal of 146168257 is 752861641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 24336 = 12089^2 + 156^2 .

It is a cyclic number.

It is not a de Polignac number, because 146168257 - 2⁷ = 146168129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146162257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73084128 + 73084129.

It is an arithmetic number, because the mean of its divisors is an integer number (73084129).

Almost surely, 2^146168257 is an apocalyptic number.

It is an amenable number.

146168257 is a deficient number, since it is larger than the sum of its proper divisors (1).

146168257 is an equidigital number, since it uses as much as digits as its factorization.

146168257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 146168257 is about 12090.0064929677. The cubic root of 146168257 is about 526.7659437821.

The spelling of 146168257 in words is "one hundred forty-six million, one hundred sixty-eight thousand, two hundred fifty-seven".