681131422 has 8 divisors (see below), whose sum is σ = 1024196400. Its totient is φ = 339732624.

The previous prime is 681131419. The next prime is 681131441. The reversal of 681131422 is 224131186.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415522 + ... + 417157.

It is an arithmetic number, because the mean of its divisors is an integer number (128024550).

Almost surely, 2^681131422 is an apocalyptic number.

681131422 is a deficient number, since it is larger than the sum of its proper divisors (343064978).

681131422 is a wasteful number, since it uses less digits than its factorization.

681131422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833090.

The product of its digits is 2304, while the sum is 28.

The square root of 681131422 is about 26098.4946309169. The cubic root of 681131422 is about 879.8533769144.

The spelling of 681131422 in words is "six hundred eighty-one million, one hundred thirty-one thousand, four hundred twenty-two".