165012697 has 8 divisors (see below), whose sum is σ = 171442440. Its totient is φ = 158632320.

The previous prime is 165012647. The next prime is 165012707. The reversal of 165012697 is 796210561.

It can be written as a sum of positive squares in 4 ways, for example, as 3316041 + 161696656 = 1821^2 + 12716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165012697 - 2⁷ = 165012569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165012607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5454 + ... + 18967.

It is an arithmetic number, because the mean of its divisors is an integer number (21430305).

Almost surely, 2^165012697 is an apocalyptic number.

It is an amenable number.

165012697 is a deficient number, since it is larger than the sum of its proper divisors (6429743).

165012697 is a wasteful number, since it uses less digits than its factorization.

165012697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24683.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 165012697 is about 12845.7267992123. The cubic root of 165012697 is about 548.4947236882.

The spelling of 165012697 in words is "one hundred sixty-five million, twelve thousand, six hundred ninety-seven".