10139866 has 8 divisors (see below), whose sum is σ = 16592544. Its totient is φ = 4609020.

The previous prime is 10139809. The next prime is 10139867. The reversal of 10139866 is 66893101.

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

It is not an unprimeable number, because it can be changed into a prime (10139867) 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 3 ways as a sum of consecutive naturals, for example, 230430 + ... + 230473.

It is an arithmetic number, because the mean of its divisors is an integer number (2074068).

Almost surely, 2^10139866 is an apocalyptic number.

10139866 is a deficient number, since it is larger than the sum of its proper divisors (6452678).

10139866 is a wasteful number, since it uses less digits than its factorization.

10139866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460916.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 10139866 is about 3184.3156250598. The cubic root of 10139866 is about 216.4432626935.

It can be divided in two parts, 10 and 139866, that added together give a square (139876 = 374²).

The spelling of 10139866 in words is "ten million, one hundred thirty-nine thousand, eight hundred sixty-six".