10681091 has 4 divisors (see below), whose sum is σ = 10719384. Its totient is φ = 10642800.

The previous prime is 10681067. The next prime is 10681093. The reversal of 10681091 is 19018601.

10681091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10681091 - 2¹⁴ = 10664707 is a prime.

It is a super-2 number, since 2×10681091² = 228171409900562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10681091.

It is not an unprimeable number, because it can be changed into a prime (10681093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18725 + ... + 19286.

It is an arithmetic number, because the mean of its divisors is an integer number (2679846).

Almost surely, 2^10681091 is an apocalyptic number.

10681091 is a deficient number, since it is larger than the sum of its proper divisors (38293).

10681091 is an equidigital number, since it uses as much as digits as its factorization.

10681091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38292.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 10681091 is about 3268.1938437002. The cubic root of 10681091 is about 220.2276637733.

Adding to 10681091 its reverse (19018601), we get a palindrome (29699692).

The spelling of 10681091 in words is "ten million, six hundred eighty-one thousand, ninety-one".