130031437 has 2 divisors, whose sum is σ = 130031438. Its totient is φ = 130031436.

The previous prime is 130031417. The next prime is 130031449. The reversal of 130031437 is 734130031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 5731236 = 11149^2 + 2394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130031437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130031417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015718 + 65015719.

It is an arithmetic number, because the mean of its divisors is an integer number (65015719).

Almost surely, 2^130031437 is an apocalyptic number.

It is an amenable number.

130031437 is a deficient number, since it is larger than the sum of its proper divisors (1).

130031437 is an equidigital number, since it uses as much as digits as its factorization.

130031437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 130031437 is about 11403.1327713046. The cubic root of 130031437 is about 506.6205328397.

Adding to 130031437 its reverse (734130031), we get a palindrome (864161468).

The spelling of 130031437 in words is "one hundred thirty million, thirty-one thousand, four hundred thirty-seven".