130240437 has 4 divisors (see below), whose sum is σ = 173653920. Its totient is φ = 86826956.

The previous prime is 130240433. The next prime is 130240441. The reversal of 130240437 is 734042031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (130240433) and next prime (130240441).

It is a cyclic number.

It is not a de Polignac number, because 130240437 - 2² = 130240433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130240433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21706737 + ... + 21706742.

It is an arithmetic number, because the mean of its divisors is an integer number (43413480).

Almost surely, 2^130240437 is an apocalyptic number.

It is an amenable number.

130240437 is a deficient number, since it is larger than the sum of its proper divisors (43413483).

130240437 is an equidigital number, since it uses as much as digits as its factorization.

130240437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43413482.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 130240437 is about 11412.2932401862. The cubic root of 130240437 is about 506.8918185517.

Adding to 130240437 its reverse (734042031), we get a palindrome (864282468).

The spelling of 130240437 in words is "one hundred thirty million, two hundred forty thousand, four hundred thirty-seven".