10182281 has 4 divisors (see below), whose sum is σ = 10193172. Its totient is φ = 10171392.

The previous prime is 10182239. The next prime is 10182311. The reversal of 10182281 is 18228101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18228101 = 4057 ⋅4493.

It can be written as a sum of positive squares in 2 ways, for example, as 7376656 + 2805625 = 2716^2 + 1675^2 .

It is a cyclic number.

It is not a de Polignac number, because 10182281 - 2⁶ = 10182217 is a prime.

It is a super-2 number, since 2×10182281² = 207357692725922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10182581) 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, 3896 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (2548293).

Almost surely, 2^10182281 is an apocalyptic number.

It is an amenable number.

10182281 is a deficient number, since it is larger than the sum of its proper divisors (10891).

10182281 is an equidigital number, since it uses as much as digits as its factorization.

10182281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10890.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 10182281 is about 3190.9686617076. The cubic root of 10182281 is about 216.7446365011.

The spelling of 10182281 in words is "ten million, one hundred eighty-two thousand, two hundred eighty-one".