10866131 has 2 divisors, whose sum is σ = 10866132. Its totient is φ = 10866130.

The previous prime is 10866103. The next prime is 10866133. The reversal of 10866131 is 13166801.

10866131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13166801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10866131 - 2⁶ = 10866067 is a prime.

It is a super-2 number, since 2×10866131² = 236145605818322, which contains 22 as substring.

Together with 10866133, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10866131.

It is not a weakly prime, because it can be changed into another prime (10866133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5433065 + 5433066.

It is an arithmetic number, because the mean of its divisors is an integer number (5433066).

Almost surely, 2^10866131 is an apocalyptic number.

10866131 is a deficient number, since it is larger than the sum of its proper divisors (1).

10866131 is an equidigital number, since it uses as much as digits as its factorization.

10866131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 10866131 is about 3296.3815009795. The cubic root of 10866131 is about 221.4921364111.

The spelling of 10866131 in words is "ten million, eight hundred sixty-six thousand, one hundred thirty-one".