818127165 has 16 divisors (see below), whose sum is σ = 1344382848. Its totient is φ = 424541376.

The previous prime is 818127139. The next prime is 818127179. The reversal of 818127165 is 561721818.

It is not a de Polignac number, because 818127165 - 2¹¹ = 818125117 is a prime.

It is a super-2 number, since 2×818127165² = 1338664116221874450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736497 + ... + 737606.

It is an arithmetic number, because the mean of its divisors is an integer number (84023928).

Almost surely, 2^818127165 is an apocalyptic number.

It is an amenable number.

818127165 is a deficient number, since it is larger than the sum of its proper divisors (526255683).

818127165 is a wasteful number, since it uses less digits than its factorization.

818127165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474148.

The product of its digits is 26880, while the sum is 39.

The square root of 818127165 is about 28602.9223157355. The cubic root of 818127165 is about 935.2770357358.

The spelling of 818127165 in words is "eight hundred eighteen million, one hundred twenty-seven thousand, one hundred sixty-five".