130236165 has 36 divisors (see below), whose sum is σ = 238278924. Its totient is φ = 65795328.

The previous prime is 130236157. The next prime is 130236179. The reversal of 130236165 is 561632031.

It can be written as a sum of positive squares in 2 ways, for example, as 60980481 + 69255684 = 7809^2 + 8322^2 .

It is not a de Polignac number, because 130236165 - 2³ = 130236157 is a prime.

It is a super-2 number, since 2×130236165² = 33922917347814450, 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 35 ways as a sum of consecutive naturals, for example, 12237 + ... + 20253.

It is an arithmetic number, because the mean of its divisors is an integer number (6618859).

Almost surely, 2^130236165 is an apocalyptic number.

130236165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130236165 is a deficient number, since it is larger than the sum of its proper divisors (108042759).

130236165 is a wasteful number, since it uses less digits than its factorization.

130236165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066 (or 8044 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 130236165 is about 11412.1060720622. The cubic root of 130236165 is about 506.8862763264.

Adding to 130236165 its reverse (561632031), we get a palindrome (691868196).

The spelling of 130236165 in words is "one hundred thirty million, two hundred thirty-six thousand, one hundred sixty-five".