165052979 has 16 divisors (see below), whose sum is σ = 203766528. Its totient is φ = 130190112.

The previous prime is 165052961. The next prime is 165052997. The reversal of 165052979 is 979250561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (165052961) and next prime (165052997).

It is not a de Polignac number, because 165052979 - 2¹² = 165048883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165052999) 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 in 15 ways as a sum of consecutive naturals, for example, 28964 + ... + 34190.

It is an arithmetic number, because the mean of its divisors is an integer number (12735408).

Almost surely, 2^165052979 is an apocalyptic number.

165052979 is a deficient number, since it is larger than the sum of its proper divisors (38713549).

165052979 is a wasteful number, since it uses less digits than its factorization.

165052979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594.

The product of its (nonzero) digits is 170100, while the sum is 44.

The square root of 165052979 is about 12847.2946179342. The cubic root of 165052979 is about 548.5393519042.

The spelling of 165052979 in words is "one hundred sixty-five million, fifty-two thousand, nine hundred seventy-nine".