130236291 has 6 divisors (see below), whose sum is σ = 188119100. Its totient is φ = 86824188.

The previous prime is 130236289. The next prime is 130236329. The reversal of 130236291 is 192632031.

130236291 is a `hidden beast` number, since 1 + 30 + 2 + 3 + 629 + 1 = 666.

It is not a de Polignac number, because 130236291 - 2¹ = 130236289 is a prime.

It is a super-2 number, since 2×130236291² = 33922982986873362, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (130236221) 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, 7235341 + ... + 7235358.

Almost surely, 2^130236291 is an apocalyptic number.

130236291 is a deficient number, since it is larger than the sum of its proper divisors (57882809).

130236291 is a wasteful number, since it uses less digits than its factorization.

130236291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14470705 (or 14470702 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 130236291 is about 11412.1115925143. Note that the first 3 decimals coincide. The cubic root of 130236291 is about 506.8864397926.

The spelling of 130236291 in words is "one hundred thirty million, two hundred thirty-six thousand, two hundred ninety-one".