361590631 has 4 divisors (see below), whose sum is σ = 361961712. Its totient is φ = 361219552.

The previous prime is 361590611. The next prime is 361590641. The reversal of 361590631 is 136095163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136095163 = 23 ⋅5917181.

It is a cyclic number.

It is not a de Polignac number, because 361590631 - 2¹¹ = 361588583 is a prime.

It is a super-2 number, since 2×361590631² = 261495568853956322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361590601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184075 + ... + 186028.

It is an arithmetic number, because the mean of its divisors is an integer number (90490428).

Almost surely, 2^361590631 is an apocalyptic number.

361590631 is a deficient number, since it is larger than the sum of its proper divisors (371081).

361590631 is an equidigital number, since it uses as much as digits as its factorization.

361590631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371080.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 361590631 is about 19015.5365688166. The cubic root of 361590631 is about 712.4248446839.

The spelling of 361590631 in words is "three hundred sixty-one million, five hundred ninety thousand, six hundred thirty-one".