10115281 has 4 divisors (see below), whose sum is σ = 11034864. Its totient is φ = 9195700.

The previous prime is 10115279. The next prime is 10115297. The reversal of 10115281 is 18251101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10115281 - 2¹ = 10115279 is a prime.

It is a super-2 number, since 2×10115281² = 204637819417922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10115381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459775 + ... + 459796.

It is an arithmetic number, because the mean of its divisors is an integer number (2758716).

Almost surely, 2^10115281 is an apocalyptic number.

10115281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10115281 is a deficient number, since it is larger than the sum of its proper divisors (919583).

10115281 is an equidigital number, since it uses as much as digits as its factorization.

10115281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919582.

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 10115281 is about 3180.4529551622. The cubic root of 10115281 is about 216.2681925287.

Adding to 10115281 its reverse (18251101), we get a palindrome (28366382).

The spelling of 10115281 in words is "ten million, one hundred fifteen thousand, two hundred eighty-one".