1307123977 has 2 divisors, whose sum is σ = 1307123978. Its totient is φ = 1307123976.

The previous prime is 1307123953. The next prime is 1307124011. The reversal of 1307123977 is 7793217031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962798841 + 344325136 = 31029^2 + 18556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307123977 - 2⁷ = 1307123849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1307123777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653561988 + 653561989.

It is an arithmetic number, because the mean of its divisors is an integer number (653561989).

Almost surely, 2^1307123977 is an apocalyptic number.

It is an amenable number.

1307123977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307123977 is an equidigital number, since it uses as much as digits as its factorization.

1307123977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 1307123977 is about 36154.1695659021. The cubic root of 1307123977 is about 1093.3828570316.

It can be divided in two parts, 130712 and 3977, that added together give a square (134689 = 367²).

The spelling of 1307123977 in words is "one billion, three hundred seven million, one hundred twenty-three thousand, nine hundred seventy-seven".