227239081 has 4 divisors (see below), whose sum is σ = 227806164. Its totient is φ = 226672000.

The previous prime is 227239073. The next prime is 227239093. The reversal of 227239081 is 180932722.

227239081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125552025 + 101687056 = 11205^2 + 10084^2 .

It is a cyclic number.

It is not a de Polignac number, because 227239081 - 2³ = 227239073 is a prime.

It is a super-2 number, since 2×227239081² = 103275199867449122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227233081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282940 + ... + 283741.

It is an arithmetic number, because the mean of its divisors is an integer number (56951541).

Almost surely, 2^227239081 is an apocalyptic number.

It is an amenable number.

227239081 is a deficient number, since it is larger than the sum of its proper divisors (567083).

227239081 is an equidigital number, since it uses as much as digits as its factorization.

227239081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567082.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 227239081 is about 15074.4512669616. The cubic root of 227239081 is about 610.2311056595.

The spelling of 227239081 in words is "two hundred twenty-seven million, two hundred thirty-nine thousand, eighty-one".