10681491 has 8 divisors (see below), whose sum is σ = 15079824. Its totient is φ = 6702080.

The previous prime is 10681481. The next prime is 10681507. The reversal of 10681491 is 19418601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10681491 - 2⁵ = 10681459 is a prime.

It is a super-2 number, since 2×10681491² = 228188499966162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10681421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104670 + ... + 104771.

It is an arithmetic number, because the mean of its divisors is an integer number (1884978).

Almost surely, 2^10681491 is an apocalyptic number.

10681491 is a deficient number, since it is larger than the sum of its proper divisors (4398333).

10681491 is a wasteful number, since it uses less digits than its factorization.

10681491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209461.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 10681491 is about 3268.2550390078. The cubic root of 10681491 is about 220.2304128671.

The spelling of 10681491 in words is "ten million, six hundred eighty-one thousand, four hundred ninety-one".