165313301 has 4 divisors (see below), whose sum is σ = 165717900. Its totient is φ = 164908704.

The previous prime is 165313289. The next prime is 165313303. The reversal of 165313301 is 103313561.

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: 103313561 = 13 ⋅7947197.

It can be written as a sum of positive squares in 2 ways, for example, as 85192900 + 80120401 = 9230^2 + 8951^2 .

It is a cyclic number.

It is not a de Polignac number, because 165313301 - 2²⁶ = 98204437 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 (165313303) 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, 201686 + ... + 202503.

It is an arithmetic number, because the mean of its divisors is an integer number (41429475).

Almost surely, 2^165313301 is an apocalyptic number.

It is an amenable number.

165313301 is a deficient number, since it is larger than the sum of its proper divisors (404599).

165313301 is an equidigital number, since it uses as much as digits as its factorization.

165313301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404598.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 165313301 is about 12857.4220199852. The cubic root of 165313301 is about 548.8275863336.

Adding to 165313301 its reverse (103313561), we get a palindrome (268626862).

The spelling of 165313301 in words is "one hundred sixty-five million, three hundred thirteen thousand, three hundred one".