1361400317 has 2 divisors, whose sum is σ = 1361400318. Its totient is φ = 1361400316.

The previous prime is 1361400289. The next prime is 1361400319. The reversal of 1361400317 is 7130041631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 978063076 + 383337241 = 31274^2 + 19579^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361400317 - 2²⁴ = 1344623101 is a prime.

Together with 1361400319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361400319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680700158 + 680700159.

It is an arithmetic number, because the mean of its divisors is an integer number (680700159).

Almost surely, 2^1361400317 is an apocalyptic number.

It is an amenable number.

1361400317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361400317 is an equidigital number, since it uses as much as digits as its factorization.

1361400317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1361400317 is about 36897.1586575444. The cubic root of 1361400317 is about 1108.3117796224.

Adding to 1361400317 its reverse (7130041631), we get a palindrome (8491441948).

The spelling of 1361400317 in words is "one billion, three hundred sixty-one million, four hundred thousand, three hundred seventeen".