10139285 has 16 divisors (see below), whose sum is σ = 13169520. Its totient is φ = 7449600.

The previous prime is 10139281. The next prime is 10139287. The reversal of 10139285 is 58293101.

It can be written as a sum of positive squares in 8 ways, for example, as 39601 + 10099684 = 199^2 + 3178^2 .

It is not a de Polignac number, because 10139285 - 2² = 10139281 is a prime.

It is a super-2 number, since 2×10139285² = 205610200622450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10139281) 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 15 ways as a sum of consecutive naturals, for example, 25085 + ... + 25485.

It is an arithmetic number, because the mean of its divisors is an integer number (823095).

Almost surely, 2^10139285 is an apocalyptic number.

It is an amenable number.

10139285 is a deficient number, since it is larger than the sum of its proper divisors (3030235).

10139285 is a wasteful number, since it uses less digits than its factorization.

10139285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 10139285 is about 3184.2243953591. The cubic root of 10139285 is about 216.4391286502.

The spelling of 10139285 in words is "ten million, one hundred thirty-nine thousand, two hundred eighty-five".