361990313 has 2 divisors, whose sum is σ = 361990314. Its totient is φ = 361990312.

The previous prime is 361990303. The next prime is 361990357. The reversal of 361990313 is 313099163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333719824 + 28270489 = 18268^2 + 5317^2 .

It is a cyclic number.

It is not a de Polignac number, because 361990313 - 2¹⁰ = 361989289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (361990303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180995156 + 180995157.

It is an arithmetic number, because the mean of its divisors is an integer number (180995157).

Almost surely, 2^361990313 is an apocalyptic number.

It is an amenable number.

361990313 is a deficient number, since it is larger than the sum of its proper divisors (1).

361990313 is an equidigital number, since it uses as much as digits as its factorization.

361990313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 361990313 is about 19026.0430200292. The cubic root of 361990313 is about 712.6872395153.

The spelling of 361990313 in words is "three hundred sixty-one million, nine hundred ninety thousand, three hundred thirteen".