10681291 has 4 divisors (see below), whose sum is σ = 10693584. Its totient is φ = 10669000.

The previous prime is 10681289. The next prime is 10681303. The reversal of 10681291 is 19218601.

It is a happy number.

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 10681291 - 2¹ = 10681289 is a prime.

It is a super-2 number, since 2×10681291² = 228179954853362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10681241) 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, 4735 + ... + 6616.

It is an arithmetic number, because the mean of its divisors is an integer number (2673396).

Almost surely, 2^10681291 is an apocalyptic number.

10681291 is a deficient number, since it is larger than the sum of its proper divisors (12293).

10681291 is an equidigital number, since it uses as much as digits as its factorization.

10681291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12292.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 10681291 is about 3268.2244414972. The cubic root of 10681291 is about 220.2290383288.

Adding to 10681291 its reverse (19218601), we get a palindrome (29899892).

The spelling of 10681291 in words is "ten million, six hundred eighty-one thousand, two hundred ninety-one".