681393183 has 8 divisors (see below), whose sum is σ = 923923200. Its totient is φ = 446562648.

The previous prime is 681393161. The next prime is 681393187. The reversal of 681393183 is 381393186.

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

It is not a de Polignac number, because 681393183 - 2¹⁴ = 681376799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681393187) 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, 1924663 + ... + 1925016.

It is an arithmetic number, because the mean of its divisors is an integer number (115490400).

Almost surely, 2^681393183 is an apocalyptic number.

681393183 is a deficient number, since it is larger than the sum of its proper divisors (242530017).

681393183 is a wasteful number, since it uses less digits than its factorization.

681393183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849741.

The product of its digits is 93312, while the sum is 42.

The square root of 681393183 is about 26103.5090169885. The cubic root of 681393183 is about 879.9660726417.

The spelling of 681393183 in words is "six hundred eighty-one million, three hundred ninety-three thousand, one hundred eighty-three".