361563631 has 16 divisors (see below), whose sum is σ = 425553408. Its totient is φ = 302853600.

The previous prime is 361563617. The next prime is 361563647. The reversal of 361563631 is 136365163.

It is a cyclic number.

It is not a de Polignac number, because 361563631 - 2⁹ = 361563119 is a prime.

It is a super-2 number, since 2×361563631² = 261456518523808322, 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 (361563661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88230 + ... + 92236.

It is an arithmetic number, because the mean of its divisors is an integer number (26597088).

Almost surely, 2^361563631 is an apocalyptic number.

361563631 is a deficient number, since it is larger than the sum of its proper divisors (63989777).

361563631 is a wasteful number, since it uses less digits than its factorization.

361563631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662.

The product of its digits is 29160, while the sum is 34.

The square root of 361563631 is about 19014.8266097801. The cubic root of 361563631 is about 712.4071119700.

The spelling of 361563631 in words is "three hundred sixty-one million, five hundred sixty-three thousand, six hundred thirty-one".