165312041 has 16 divisors (see below), whose sum is σ = 176964480. Its totient is φ = 154177920.

The previous prime is 165312011. The next prime is 165312061. The reversal of 165312041 is 140213561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165312041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165311998 and 165312016.

It is not an unprimeable number, because it can be changed into a prime (165312011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88580 + ... + 90426.

It is an arithmetic number, because the mean of its divisors is an integer number (11060280).

Almost surely, 2^165312041 is an apocalyptic number.

It is an amenable number.

165312041 is a deficient number, since it is larger than the sum of its proper divisors (11652439).

165312041 is a wasteful number, since it uses less digits than its factorization.

165312041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 165312041 is about 12857.3730209557. The cubic root of 165312041 is about 548.8261919620.

The spelling of 165312041 in words is "one hundred sixty-five million, three hundred twelve thousand, forty-one".