680781141 has 12 divisors (see below), whose sum is σ = 984952332. Its totient is φ = 453114816.

The previous prime is 680781083. The next prime is 680781169. The reversal of 680781141 is 141187086.

680781141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8468100 + 672313041 = 2910^2 + 25929^2 .

It is not a de Polignac number, because 680781141 - 2¹⁴ = 680764757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680781096 and 680781105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680780141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55746 + ... + 66851.

It is an arithmetic number, because the mean of its divisors is an integer number (82079361).

Almost surely, 2^680781141 is an apocalyptic number.

It is an amenable number.

680781141 is a deficient number, since it is larger than the sum of its proper divisors (304171191).

680781141 is a wasteful number, since it uses less digits than its factorization.

680781141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123220 (or 123217 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 680781141 is about 26091.7830168810. The cubic root of 680781141 is about 879.7025255725.

The spelling of 680781141 in words is "six hundred eighty million, seven hundred eighty-one thousand, one hundred forty-one".