130165281 has 9 divisors (see below), whose sum is σ = 188065969. Its totient is φ = 86754036.

The previous prime is 130165261. The next prime is 130165307. The reversal of 130165281 is 182561031.

The square root of 130165281 is 11409.

It is a perfect power (a square), and thus also a powerful number.

130165281 is a `hidden beast` number, since 1 + 3 + 0 + 1 + 652 + 8 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 130165281 - 2⁷ = 130165153 is a prime.

It is a super-2 number, since 2×130165281² = 33886000755617922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130165261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32326 + ... + 36128.

Almost surely, 2^130165281 is an apocalyptic number.

130165281 is the 11409-th square number.

130165281 is the 5705-th centered octagonal number.

It is an amenable number.

130165281 is a deficient number, since it is larger than the sum of its proper divisors (57900688).

130165281 is an frugal number, since it uses more digits than its factorization.

130165281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612 (or 3806 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The cubic root of 130165281 is about 506.7942981692.

The spelling of 130165281 in words is "one hundred thirty million, one hundred sixty-five thousand, two hundred eighty-one".