1380318377 has 2 divisors, whose sum is σ = 1380318378. Its totient is φ = 1380318376.

The previous prime is 1380318371. The next prime is 1380318413. The reversal of 1380318377 is 7738130831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1288522816 + 91795561 = 35896^2 + 9581^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380318377 - 2¹² = 1380314281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1380318371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690159188 + 690159189.

It is an arithmetic number, because the mean of its divisors is an integer number (690159189).

Almost surely, 2^1380318377 is an apocalyptic number.

It is an amenable number.

1380318377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380318377 is an equidigital number, since it uses as much as digits as its factorization.

1380318377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1380318377 is about 37152.6362052547. The cubic root of 1380318377 is about 1113.4218934557.

The spelling of 1380318377 in words is "one billion, three hundred eighty million, three hundred eighteen thousand, three hundred seventy-seven".