10281139 has 8 divisors (see below), whose sum is σ = 11358720. Its totient is φ = 9227400.

The previous prime is 10281121. The next prime is 10281143. The reversal of 10281139 is 93118201.

10281139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10281139 - 2²³ = 1892531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10281169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5047 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (1419840).

Almost surely, 2^10281139 is an apocalyptic number.

10281139 is a deficient number, since it is larger than the sum of its proper divisors (1077581).

10281139 is a wasteful number, since it uses less digits than its factorization.

10281139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 10281139 is about 3206.4215256263. The cubic root of 10281139 is about 217.4438239560.

The spelling of 10281139 in words is "ten million, two hundred eighty-one thousand, one hundred thirty-nine".