130436777 has 2 divisors, whose sum is σ = 130436778. Its totient is φ = 130436776.

The previous prime is 130436743. The next prime is 130436783. The reversal of 130436777 is 777634031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112763161 + 17673616 = 10619^2 + 4204^2 .

It is a cyclic number.

It is not a de Polignac number, because 130436777 - 2⁸ = 130436521 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130436777.

It is not a weakly prime, because it can be changed into another prime (130436707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65218388 + 65218389.

It is an arithmetic number, because the mean of its divisors is an integer number (65218389).

Almost surely, 2^130436777 is an apocalyptic number.

It is an amenable number.

130436777 is a deficient number, since it is larger than the sum of its proper divisors (1).

130436777 is an equidigital number, since it uses as much as digits as its factorization.

130436777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 130436777 is about 11420.8921280257. The cubic root of 130436777 is about 507.1464070977.

The spelling of 130436777 in words is "one hundred thirty million, four hundred thirty-six thousand, seven hundred seventy-seven".