152320165 has 4 divisors (see below), whose sum is σ = 182784204. Its totient is φ = 121856128.

The previous prime is 152320159. The next prime is 152320177. The reversal of 152320165 is 561023251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561023251 = 3889 ⋅144259.

It can be written as a sum of positive squares in 2 ways, for example, as 82864609 + 69455556 = 9103^2 + 8334^2 .

It is a cyclic number.

It is not a de Polignac number, because 152320165 - 2²⁷ = 18102437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 15232012 + ... + 15232021.

It is an arithmetic number, because the mean of its divisors is an integer number (45696051).

Almost surely, 2^152320165 is an apocalyptic number.

It is an amenable number.

152320165 is a deficient number, since it is larger than the sum of its proper divisors (30464039).

152320165 is an equidigital number, since it uses as much as digits as its factorization.

152320165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30464038.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 152320165 is about 12341.8055810323. The cubic root of 152320165 is about 534.0547725850.

The spelling of 152320165 in words is "one hundred fifty-two million, three hundred twenty thousand, one hundred sixty-five".