227359021 has 2 divisors, whose sum is σ = 227359022. Its totient is φ = 227359020.

The previous prime is 227359019. The next prime is 227359031. The reversal of 227359021 is 120953722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222457225 + 4901796 = 14915^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 227359021 - 2¹ = 227359019 is a prime.

Together with 227359019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227359001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113679510 + 113679511.

It is an arithmetic number, because the mean of its divisors is an integer number (113679511).

Almost surely, 2^227359021 is an apocalyptic number.

It is an amenable number.

227359021 is a deficient number, since it is larger than the sum of its proper divisors (1).

227359021 is an equidigital number, since it uses as much as digits as its factorization.

227359021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 227359021 is about 15078.4289964174. The cubic root of 227359021 is about 610.3384496444.

The spelling of 227359021 in words is "two hundred twenty-seven million, three hundred fifty-nine thousand, twenty-one".