681201 has 6 divisors (see below), whose sum is σ = 983970. Its totient is φ = 454128.

The previous prime is 681179. The next prime is 681221. The reversal of 681201 is 102186.

681201 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 only one way, i.e., 680625 + 576 = 825^2 + 24^2 .

It is not a de Polignac number, because 681201 - 2⁶ = 681137 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681201.

It is not an unprimeable number, because it can be changed into a prime (681221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37836 + ... + 37853.

It is an arithmetic number, because the mean of its divisors is an integer number (163995).

2⁶⁸¹²⁰¹ is an apocalyptic number.

It is an amenable number.

681201 is a deficient number, since it is larger than the sum of its proper divisors (302769).

681201 is a wasteful number, since it uses less digits than its factorization.

681201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75695 (or 75692 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 681201 is about 825.3490170831. The cubic root of 681201 is about 87.9883335085.

Adding to 681201 its reverse (102186), we get a palindrome (783387).

It can be divided in two parts, 68120 and 1, that added together give a square (68121 = 261²).

The spelling of 681201 in words is "six hundred eighty-one thousand, two hundred one".