130302291 has 32 divisors (see below), whose sum is σ = 208051200. Its totient is φ = 70925184.

The previous prime is 130302287. The next prime is 130302329. The reversal of 130302291 is 192203031.

It is a happy number.

It is not a de Polignac number, because 130302291 - 2² = 130302287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (130302091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168181 + ... + 168953.

It is an arithmetic number, because the mean of its divisors is an integer number (6501600).

Almost surely, 2^130302291 is an apocalyptic number.

130302291 is a deficient number, since it is larger than the sum of its proper divisors (77748909).

130302291 is a wasteful number, since it uses less digits than its factorization.

130302291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 130302291 is about 11415.0028909326. The cubic root of 130302291 is about 506.9720504805.

The spelling of 130302291 in words is "one hundred thirty million, three hundred two thousand, two hundred ninety-one".