361131318 has 16 divisors (see below), whose sum is σ = 802514160. Its totient is φ = 120377088.

The previous prime is 361131317. The next prime is 361131343. The reversal of 361131318 is 813131163.

361131318 is a `hidden beast` number, since 3 + 611 + 31 + 3 + 18 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 361131291 and 361131300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361131311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3343755 + ... + 3343862.

It is an arithmetic number, because the mean of its divisors is an integer number (50157135).

Almost surely, 2^361131318 is an apocalyptic number.

361131318 is an abundant number, since it is smaller than the sum of its proper divisors (441382842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361131318 is a wasteful number, since it uses less digits than its factorization.

361131318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687628 (or 6687622 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 361131318 is about 19003.4554226330. The cubic root of 361131318 is about 712.1230626720.

The spelling of 361131318 in words is "three hundred sixty-one million, one hundred thirty-one thousand, three hundred eighteen".