130128377 has 2 divisors, whose sum is σ = 130128378. Its totient is φ = 130128376.

The previous prime is 130128367. The next prime is 130128379. The reversal of 130128377 is 773821031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105288121 + 24840256 = 10261^2 + 4984^2 .

It is an emirp because it is prime and its reverse (773821031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130128377 is a prime.

Together with 130128379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130128379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65064188 + 65064189.

It is an arithmetic number, because the mean of its divisors is an integer number (65064189).

Almost surely, 2^130128377 is an apocalyptic number.

It is an amenable number.

130128377 is a deficient number, since it is larger than the sum of its proper divisors (1).

130128377 is an equidigital number, since it uses as much as digits as its factorization.

130128377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 130128377 is about 11407.3825656896. The cubic root of 130128377 is about 506.7463987999.

The spelling of 130128377 in words is "one hundred thirty million, one hundred twenty-eight thousand, three hundred seventy-seven".