165414979 has 2 divisors, whose sum is σ = 165414980. Its totient is φ = 165414978.

The previous prime is 165414971. The next prime is 165415001. The reversal of 165414979 is 979414561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165414979 - 2³ = 165414971 is a prime.

It is not a weakly prime, because it can be changed into another prime (165414971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82707489 + 82707490.

It is an arithmetic number, because the mean of its divisors is an integer number (82707490).

Almost surely, 2^165414979 is an apocalyptic number.

165414979 is a deficient number, since it is larger than the sum of its proper divisors (1).

165414979 is an equidigital number, since it uses as much as digits as its factorization.

165414979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 165414979 is about 12861.3754707652. The cubic root of 165414979 is about 548.9400843480.

The spelling of 165414979 in words is "one hundred sixty-five million, four hundred fourteen thousand, nine hundred seventy-nine".