165752897 has 4 divisors (see below), whose sum is σ = 165789360. Its totient is φ = 165716436.

The previous prime is 165752891. The next prime is 165752911. The reversal of 165752897 is 798257561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798257561 = 7193 ⋅110977.

It is a cyclic number.

It is not a de Polignac number, because 165752897 - 2¹⁴ = 165736513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165752891) 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, 10247 + ... + 20892.

It is an arithmetic number, because the mean of its divisors is an integer number (41447340).

Almost surely, 2^165752897 is an apocalyptic number.

It is an amenable number.

165752897 is a deficient number, since it is larger than the sum of its proper divisors (36463).

165752897 is an equidigital number, since it uses as much as digits as its factorization.

165752897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36462.

The product of its digits is 1058400, while the sum is 50.

The square root of 165752897 is about 12874.5056992492. The cubic root of 165752897 is about 549.3136308585.

The spelling of 165752897 in words is "one hundred sixty-five million, seven hundred fifty-two thousand, eight hundred ninety-seven".