1363975631 has 2 divisors, whose sum is σ = 1363975632. Its totient is φ = 1363975630.

The previous prime is 1363975621. The next prime is 1363975633. The reversal of 1363975631 is 1365793631.

It is a strong prime.

It is an emirp because it is prime and its reverse (1365793631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1363975631 is a prime.

It is a super-2 number, since 2×1363975631² = 3720859043923696322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1363975633, 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 (1363975633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681987815 + 681987816.

It is an arithmetic number, because the mean of its divisors is an integer number (681987816).

Almost surely, 2^1363975631 is an apocalyptic number.

1363975631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363975631 is an equidigital number, since it uses as much as digits as its factorization.

1363975631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 44.

The square root of 1363975631 is about 36932.0407099310. The cubic root of 1363975631 is about 1109.0101911362.

The spelling of 1363975631 in words is "one billion, three hundred sixty-three million, nine hundred seventy-five thousand, six hundred thirty-one".