10228181 has 4 divisors (see below), whose sum is σ = 10401600. Its totient is φ = 10054764.

The previous prime is 10228177. The next prime is 10228193. The reversal of 10228181 is 18182201.

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 10228181 - 2² = 10228177 is a prime.

It is a super-2 number, since 2×10228181² = 209231373137522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10228121) 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, 86621 + ... + 86738.

It is an arithmetic number, because the mean of its divisors is an integer number (2600400).

Almost surely, 2^10228181 is an apocalyptic number.

It is an amenable number.

10228181 is a deficient number, since it is larger than the sum of its proper divisors (173419).

10228181 is an equidigital number, since it uses as much as digits as its factorization.

10228181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173418.

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

The square root of 10228181 is about 3198.1527480719. The cubic root of 10228181 is about 217.0698310656.

The spelling of 10228181 in words is "ten million, two hundred twenty-eight thousand, one hundred eighty-one".