681275 has 24 divisors (see below), whose sum is σ = 1026720. Its totient is φ = 437760.

The previous prime is 681271. The next prime is 681293. The reversal of 681275 is 572186.

It is not a de Polignac number, because 681275 - 2² = 681271 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681275.

It is not an unprimeable number, because it can be changed into a prime (681271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2861 + ... + 3089.

It is an arithmetic number, because the mean of its divisors is an integer number (42780).

2⁶⁸¹²⁷⁵ is an apocalyptic number.

681275 is a deficient number, since it is larger than the sum of its proper divisors (345445).

681275 is a wasteful number, since it uses less digits than its factorization.

681275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 258 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 681275 is about 825.3938453853. The cubic root of 681275 is about 87.9915194996.

The spelling of 681275 in words is "six hundred eighty-one thousand, two hundred seventy-five".