681184311 has 8 divisors (see below), whose sum is σ = 908989680. Its totient is φ = 453750912.

The previous prime is 681184303. The next prime is 681184327. The reversal of 681184311 is 113481186.

It is a happy number.

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

It is not a de Polignac number, because 681184311 - 2³ = 681184303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681184351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88690 + ... + 96063.

It is an arithmetic number, because the mean of its divisors is an integer number (113623710).

Almost surely, 2^681184311 is an apocalyptic number.

681184311 is a deficient number, since it is larger than the sum of its proper divisors (227805369).

681184311 is a wasteful number, since it uses less digits than its factorization.

681184311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185985.

The product of its digits is 4608, while the sum is 33.

The square root of 681184311 is about 26099.5078689235. The cubic root of 681184311 is about 879.8761494951.

The spelling of 681184311 in words is "six hundred eighty-one million, one hundred eighty-four thousand, three hundred eleven".