130223437 has 2 divisors, whose sum is σ = 130223438. Its totient is φ = 130223436.

The previous prime is 130223419. The next prime is 130223477. The reversal of 130223437 is 734322031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112126921 + 18096516 = 10589^2 + 4254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130223437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130223407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65111718 + 65111719.

It is an arithmetic number, because the mean of its divisors is an integer number (65111719).

Almost surely, 2^130223437 is an apocalyptic number.

It is an amenable number.

130223437 is a deficient number, since it is larger than the sum of its proper divisors (1).

130223437 is an equidigital number, since it uses as much as digits as its factorization.

130223437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 130223437 is about 11411.5484050150. The cubic root of 130223437 is about 506.8697630977.

Adding to 130223437 its reverse (734322031), we get a palindrome (864545468).

The spelling of 130223437 in words is "one hundred thirty million, two hundred twenty-three thousand, four hundred thirty-seven".