165962117 has 4 divisors (see below), whose sum is σ = 166011456. Its totient is φ = 165912780.

The previous prime is 165962113. The next prime is 165962183. The reversal of 165962117 is 711269561.

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: 711269561 = 263 ⋅2704447.

It is a cyclic number.

It is not a de Polignac number, because 165962117 - 2² = 165962113 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 (165962113) 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, 19223 + ... + 26484.

It is an arithmetic number, because the mean of its divisors is an integer number (41502864).

Almost surely, 2^165962117 is an apocalyptic number.

It is an amenable number.

165962117 is a deficient number, since it is larger than the sum of its proper divisors (49339).

165962117 is an equidigital number, since it uses as much as digits as its factorization.

165962117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49338.

The product of its digits is 22680, while the sum is 38.

The square root of 165962117 is about 12882.6284973215. The cubic root of 165962117 is about 549.5446556318.

The spelling of 165962117 in words is "one hundred sixty-five million, nine hundred sixty-two thousand, one hundred seventeen".