681162 has 16 divisors (see below), whose sum is σ = 1376352. Its totient is φ = 224720.

The previous prime is 681151. The next prime is 681167. The reversal of 681162 is 261186.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681162.

It is not an unprimeable number, because it can be changed into a prime (681167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 1172.

It is an arithmetic number, because the mean of its divisors is an integer number (86022).

2⁶⁸¹¹⁶² is an apocalyptic number.

681162 is an abundant number, since it is smaller than the sum of its proper divisors (695190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681162 is a wasteful number, since it uses less digits than its factorization.

681162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173.

The product of its digits is 576, while the sum is 24.

The square root of 681162 is about 825.3253903764. The cubic root of 681162 is about 87.9866543122.

Adding to 681162 its sum of digits (24), we get a palindrome (681186).

The spelling of 681162 in words is "six hundred eighty-one thousand, one hundred sixty-two".