165141377 has 2 divisors, whose sum is σ = 165141378. Its totient is φ = 165141376.

The previous prime is 165141343. The next prime is 165141421. The reversal of 165141377 is 773141561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162843121 + 2298256 = 12761^2 + 1516^2 .

It is an emirp because it is prime and its reverse (773141561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165141377 - 2¹⁸ = 164879233 is a prime.

It is a super-2 number, since 2×165141377² = 54543348794912258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165141337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82570688 + 82570689.

It is an arithmetic number, because the mean of its divisors is an integer number (82570689).

Almost surely, 2^165141377 is an apocalyptic number.

It is an amenable number.

165141377 is a deficient number, since it is larger than the sum of its proper divisors (1).

165141377 is an equidigital number, since it uses as much as digits as its factorization.

165141377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 165141377 is about 12850.7344926273. The cubic root of 165141377 is about 548.6372621386.

The spelling of 165141377 in words is "one hundred sixty-five million, one hundred forty-one thousand, three hundred seventy-seven".