361630231 has 2 divisors, whose sum is σ = 361630232. Its totient is φ = 361630230.

The previous prime is 361630187. The next prime is 361630277. The reversal of 361630231 is 132036163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 361630231 - 2¹³ = 361622039 is a prime.

It is a super-2 number, since 2×361630231² = 261552847946226722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 361630196 and 361630205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361630331) 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, 180815115 + 180815116.

It is an arithmetic number, because the mean of its divisors is an integer number (180815116).

Almost surely, 2^361630231 is an apocalyptic number.

361630231 is a deficient number, since it is larger than the sum of its proper divisors (1).

361630231 is an equidigital number, since it uses as much as digits as its factorization.

361630231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 361630231 is about 19016.5777941248. The cubic root of 361630231 is about 712.4508510675.

Adding to 361630231 its reverse (132036163), we get a palindrome (493666394).

The spelling of 361630231 in words is "three hundred sixty-one million, six hundred thirty thousand, two hundred thirty-one".