361936681 has 8 divisors (see below), whose sum is σ = 403397280. Its totient is φ = 322717248.

The previous prime is 361936669. The next prime is 361936693. The reversal of 361936681 is 186639163.

It is an interprime number because it is at equal distance from previous prime (361936669) and next prime (361936693).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 361936681 - 2⁵ = 361936649 is a prime.

It is a super-2 number, since 2×361936681² = 261996322106591522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361936661) 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, 559951 + ... + 560596.

It is an arithmetic number, because the mean of its divisors is an integer number (50424660).

Almost surely, 2^361936681 is an apocalyptic number.

It is an amenable number.

361936681 is a deficient number, since it is larger than the sum of its proper divisors (41460599).

361936681 is a wasteful number, since it uses less digits than its factorization.

361936681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120583.

The product of its digits is 139968, while the sum is 43.

The square root of 361936681 is about 19024.6335312931. The cubic root of 361936681 is about 712.6520408479.

The spelling of 361936681 in words is "three hundred sixty-one million, nine hundred thirty-six thousand, six hundred eighty-one".