130549231 has 2 divisors, whose sum is σ = 130549232. Its totient is φ = 130549230.

The previous prime is 130549193. The next prime is 130549261. The reversal of 130549231 is 132945031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130549231 is a prime.

It is a super-2 number, since 2×130549231² = 34086203429382722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130549231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130549261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65274615 + 65274616.

It is an arithmetic number, because the mean of its divisors is an integer number (65274616).

Almost surely, 2^130549231 is an apocalyptic number.

130549231 is a deficient number, since it is larger than the sum of its proper divisors (1).

130549231 is an equidigital number, since it uses as much as digits as its factorization.

130549231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 130549231 is about 11425.8142379438. The cubic root of 130549231 is about 507.2921079802.

The spelling of 130549231 in words is "one hundred thirty million, five hundred forty-nine thousand, two hundred thirty-one".