162256165 has 4 divisors (see below), whose sum is σ = 194707404. Its totient is φ = 129804928.

The previous prime is 162256163. The next prime is 162256169. The reversal of 162256165 is 561652261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561652261 = 17387 ⋅32303.

It can be written as a sum of positive squares in 2 ways, for example, as 89699841 + 72556324 = 9471^2 + 8518^2 .

It is a cyclic number.

It is not a de Polignac number, because 162256165 - 2¹ = 162256163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162256165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162256163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16225612 + ... + 16225621.

It is an arithmetic number, because the mean of its divisors is an integer number (48676851).

Almost surely, 2^162256165 is an apocalyptic number.

It is an amenable number.

162256165 is a deficient number, since it is larger than the sum of its proper divisors (32451239).

162256165 is an equidigital number, since it uses as much as digits as its factorization.

162256165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32451238.

The product of its digits is 21600, while the sum is 34.

The square root of 162256165 is about 12737.9811979764. The cubic root of 162256165 is about 545.4233615295.

The spelling of 162256165 in words is "one hundred sixty-two million, two hundred fifty-six thousand, one hundred sixty-five".