681135422 has 8 divisors (see below), whose sum is σ = 1114585272. Its totient is φ = 309607000.

The previous prime is 681135401. The next prime is 681135431. The reversal of 681135422 is 224531186.

681135422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15480329 + ... + 15480372.

It is an arithmetic number, because the mean of its divisors is an integer number (139323159).

Almost surely, 2^681135422 is an apocalyptic number.

681135422 is a deficient number, since it is larger than the sum of its proper divisors (433449850).

681135422 is a wasteful number, since it uses less digits than its factorization.

681135422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30960714.

The product of its digits is 11520, while the sum is 32.

The square root of 681135422 is about 26098.5712635769. The cubic root of 681135422 is about 879.8550992480.

The spelling of 681135422 in words is "six hundred eighty-one million, one hundred thirty-five thousand, four hundred twenty-two".