165345015 has 16 divisors (see below), whose sum is σ = 288602496. Its totient is φ = 80167200.

The previous prime is 165345007. The next prime is 165345017. The reversal of 165345015 is 510543561.

It is not a de Polignac number, because 165345015 - 2³ = 165345007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165345017) 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, 500881 + ... + 501210.

It is an arithmetic number, because the mean of its divisors is an integer number (18037656).

Almost surely, 2^165345015 is an apocalyptic number.

165345015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165345015 is a deficient number, since it is larger than the sum of its proper divisors (123257481).

165345015 is a wasteful number, since it uses less digits than its factorization.

165345015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002110.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 165345015 is about 12858.6552562855. The cubic root of 165345015 is about 548.8626801122.

Adding to 165345015 its reverse (510543561), we get a palindrome (675888576).

The spelling of 165345015 in words is "one hundred sixty-five million, three hundred forty-five thousand, fifteen".