276530165 has 4 divisors (see below), whose sum is σ = 331836204. Its totient is φ = 221224128.

The previous prime is 276530159. The next prime is 276530197. The reversal of 276530165 is 561035672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45064369 + 231465796 = 6713^2 + 15214^2 .

It is a cyclic number.

It is not a de Polignac number, because 276530165 - 2⁶ = 276530101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27653012 + ... + 27653021.

It is an arithmetic number, because the mean of its divisors is an integer number (82959051).

Almost surely, 2^276530165 is an apocalyptic number.

It is an amenable number.

276530165 is a deficient number, since it is larger than the sum of its proper divisors (55306039).

276530165 is an equidigital number, since it uses as much as digits as its factorization.

276530165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55306038.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 276530165 is about 16629.1961621721. The cubic root of 276530165 is about 651.4996262828.

The spelling of 276530165 in words is "two hundred seventy-six million, five hundred thirty thousand, one hundred sixty-five".