165714399 has 6 divisors (see below), whose sum is σ = 239365256. Its totient is φ = 110476260.

The previous prime is 165714301. The next prime is 165714403. The reversal of 165714399 is 993417561.

It is not a de Polignac number, because 165714399 - 2²⁴ = 148937183 is a prime.

It is a super-2 number, since 2×165714399² = 54922524071862402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165712399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9206347 + ... + 9206364.

Almost surely, 2^165714399 is an apocalyptic number.

165714399 is a deficient number, since it is larger than the sum of its proper divisors (73650857).

165714399 is a wasteful number, since it uses less digits than its factorization.

165714399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412717 (or 18412714 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 165714399 is about 12873.0104870617. The cubic root of 165714399 is about 549.2710994478.

The spelling of 165714399 in words is "one hundred sixty-five million, seven hundred fourteen thousand, three hundred ninety-nine".