10267681 has 4 divisors (see below), whose sum is σ = 10391472. Its totient is φ = 10143892.

The previous prime is 10267633. The next prime is 10267687. The reversal of 10267681 is 18676201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10267681 - 2⁷ = 10267553 is a prime.

It is a super-2 number, since 2×10267681² = 210850546235522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10267687) 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, 61771 + ... + 61936.

It is an arithmetic number, because the mean of its divisors is an integer number (2597868).

Almost surely, 2^10267681 is an apocalyptic number.

It is an amenable number.

10267681 is a deficient number, since it is larger than the sum of its proper divisors (123791).

10267681 is an equidigital number, since it uses as much as digits as its factorization.

10267681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123790.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 10267681 is about 3204.3222372290. The cubic root of 10267681 is about 217.3489046162.

The spelling of 10267681 in words is "ten million, two hundred sixty-seven thousand, six hundred eighty-one".