130278637 has 2 divisors, whose sum is σ = 130278638. Its totient is φ = 130278636.

The previous prime is 130278593. The next prime is 130278671. The reversal of 130278637 is 736872031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93141801 + 37136836 = 9651^2 + 6094^2 .

It is a cyclic number.

It is not a de Polignac number, because 130278637 - 2¹¹ = 130276589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130278596 and 130278605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130278437) 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 as a sum of consecutive naturals, namely, 65139318 + 65139319.

It is an arithmetic number, because the mean of its divisors is an integer number (65139319).

Almost surely, 2^130278637 is an apocalyptic number.

It is an amenable number.

130278637 is a deficient number, since it is larger than the sum of its proper divisors (1).

130278637 is an equidigital number, since it uses as much as digits as its factorization.

130278637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 130278637 is about 11413.9667513096. The cubic root of 130278637 is about 506.9413714532.

The spelling of 130278637 in words is "one hundred thirty million, two hundred seventy-eight thousand, six hundred thirty-seven".