130665637 has 2 divisors, whose sum is σ = 130665638. Its totient is φ = 130665636.

The previous prime is 130665607. The next prime is 130665659. The reversal of 130665637 is 736566031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101082916 + 29582721 = 10054^2 + 5439^2 .

It is an emirp because it is prime and its reverse (736566031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130665637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130665596 and 130665605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130665607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65332818 + 65332819.

It is an arithmetic number, because the mean of its divisors is an integer number (65332819).

Almost surely, 2^130665637 is an apocalyptic number.

It is an amenable number.

130665637 is a deficient number, since it is larger than the sum of its proper divisors (1).

130665637 is an equidigital number, since it uses as much as digits as its factorization.

130665637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 130665637 is about 11430.9070943648. The cubic root of 130665637 is about 507.4428411606.

The spelling of 130665637 in words is "one hundred thirty million, six hundred sixty-five thousand, six hundred thirty-seven".