1130780977 has 2 divisors, whose sum is σ = 1130780978. Its totient is φ = 1130780976.

The previous prime is 1130780941. The next prime is 1130781007. The reversal of 1130780977 is 7790870311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037870656 + 92910321 = 32216^2 + 9639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130780977 - 2¹⁵ = 1130748209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1130780927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565390488 + 565390489.

It is an arithmetic number, because the mean of its divisors is an integer number (565390489).

Almost surely, 2^1130780977 is an apocalyptic number.

It is an amenable number.

1130780977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130780977 is an equidigital number, since it uses as much as digits as its factorization.

1130780977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 43.

The square root of 1130780977 is about 33627.0869538234. The cubic root of 1130780977 is about 1041.8203379075.

The spelling of 1130780977 in words is "one billion, one hundred thirty million, seven hundred eighty thousand, nine hundred seventy-seven".