10381285 has 16 divisors (see below), whose sum is σ = 12825072. Its totient is φ = 8064000.

The previous prime is 10381279. The next prime is 10381291. The reversal of 10381285 is 58218301.

It is a Cunningham number, because it is equal to 3222²+1.

It is an interprime number because it is at equal distance from previous prime (10381279) and next prime (10381291).

It can be written as a sum of positive squares in 8 ways, for example, as 408321 + 9972964 = 639^2 + 3158^2 .

It is not a de Polignac number, because 10381285 - 2¹³ = 10373093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30637 + ... + 30973.

It is an arithmetic number, because the mean of its divisors is an integer number (801567).

Almost surely, 2^10381285 is an apocalyptic number.

It is an amenable number.

10381285 is a deficient number, since it is larger than the sum of its proper divisors (2443787).

10381285 is a wasteful number, since it uses less digits than its factorization.

10381285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 10381285 is about 3222.0001551831. Note that the first 3 decimals coincide. The cubic root of 10381285 is about 218.1475658299.

Adding to 10381285 its reverse (58218301), we get a palindrome (68599586).

The spelling of 10381285 in words is "ten million, three hundred eighty-one thousand, two hundred eighty-five".