868181131 has 8 divisors (see below), whose sum is σ = 875444400. Its totient is φ = 860937312.

The previous prime is 868181087. The next prime is 868181159. The reversal of 868181131 is 131181868.

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 868181131 - 2¹¹ = 868179083 is a prime.

It is a super-2 number, since 2×868181131² = 1507476952448878322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868182131) 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, 92836 + ... + 101758.

It is an arithmetic number, because the mean of its divisors is an integer number (109430550).

Almost surely, 2^868181131 is an apocalyptic number.

868181131 is a deficient number, since it is larger than the sum of its proper divisors (7263269).

868181131 is a wasteful number, since it uses less digits than its factorization.

868181131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725.

The product of its digits is 9216, while the sum is 37.

The square root of 868181131 is about 29464.9135583324. The cubic root of 868181131 is about 953.9745326031.

The spelling of 868181131 in words is "eight hundred sixty-eight million, one hundred eighty-one thousand, one hundred thirty-one".