165152311 has 4 divisors (see below), whose sum is σ = 165469824. Its totient is φ = 164834800.

The previous prime is 165152257. The next prime is 165152327. The reversal of 165152311 is 113251561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113251561 = 37 ⋅3060853.

It is a cyclic number.

It is not a de Polignac number, because 165152311 - 2¹⁵ = 165119543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165152341) 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 3 ways as a sum of consecutive naturals, for example, 157975 + ... + 159016.

It is an arithmetic number, because the mean of its divisors is an integer number (41367456).

Almost surely, 2^165152311 is an apocalyptic number.

165152311 is a deficient number, since it is larger than the sum of its proper divisors (317513).

165152311 is an equidigital number, since it uses as much as digits as its factorization.

165152311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317512.

The product of its digits is 900, while the sum is 25.

The square root of 165152311 is about 12851.1599087398. The cubic root of 165152311 is about 548.6493702841.

The spelling of 165152311 in words is "one hundred sixty-five million, one hundred fifty-two thousand, three hundred eleven".