363631013 has 2 divisors, whose sum is σ = 363631014. Its totient is φ = 363631012.

The previous prime is 363631001. The next prime is 363631033. The reversal of 363631013 is 310136363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355209409 + 8421604 = 18847^2 + 2902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-363631013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (363631033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181815506 + 181815507.

It is an arithmetic number, because the mean of its divisors is an integer number (181815507).

Almost surely, 2^363631013 is an apocalyptic number.

It is an amenable number.

363631013 is a deficient number, since it is larger than the sum of its proper divisors (1).

363631013 is an equidigital number, since it uses as much as digits as its factorization.

363631013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 363631013 is about 19069.1114895267. Note that the first 3 decimals coincide. The cubic root of 363631013 is about 713.7623546434.

Adding to 363631013 its reverse (310136363), we get a palindrome (673767376).

The spelling of 363631013 in words is "three hundred sixty-three million, six hundred thirty-one thousand, thirteen".