130431641 has 2 divisors, whose sum is σ = 130431642. Its totient is φ = 130431640.

The previous prime is 130431629. The next prime is 130431649. The reversal of 130431641 is 146134031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83905600 + 46526041 = 9160^2 + 6821^2 .

It is a cyclic number.

It is not a de Polignac number, because 130431641 - 2¹⁸ = 130169497 is a prime.

It is a Chen prime.

It is equal to p_7401236 and since 130431641 and 7401236 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (130431649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65215820 + 65215821.

It is an arithmetic number, because the mean of its divisors is an integer number (65215821).

Almost surely, 2^130431641 is an apocalyptic number.

It is an amenable number.

130431641 is a deficient number, since it is larger than the sum of its proper divisors (1).

130431641 is an equidigital number, since it uses as much as digits as its factorization.

130431641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 130431641 is about 11420.6672747261. The cubic root of 130431641 is about 507.1397506465.

Adding to 130431641 its reverse (146134031), we get a palindrome (276565672).

It can be divided in two parts, 130431 and 641, that added together give a 17-th power (131072 = 2¹⁷).

The spelling of 130431641 in words is "one hundred thirty million, four hundred thirty-one thousand, six hundred forty-one".