1376635313 has 2 divisors, whose sum is σ = 1376635314. Its totient is φ = 1376635312.

The previous prime is 1376635301. The next prime is 1376635319. The reversal of 1376635313 is 3135366731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1376632609 + 2704 = 37103^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376635313 - 2¹⁸ = 1376373169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1376635319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688317656 + 688317657.

It is an arithmetic number, because the mean of its divisors is an integer number (688317657).

Almost surely, 2^1376635313 is an apocalyptic number.

It is an amenable number.

1376635313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376635313 is an equidigital number, since it uses as much as digits as its factorization.

1376635313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 38.

The square root of 1376635313 is about 37103.0364390841. The cubic root of 1376635313 is about 1112.4307074293.

The spelling of 1376635313 in words is "one billion, three hundred seventy-six million, six hundred thirty-five thousand, three hundred thirteen".