227485021 has 2 divisors, whose sum is σ = 227485022. Its totient is φ = 227485020.

The previous prime is 227485001. The next prime is 227485039. The reversal of 227485021 is 120584722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137804121 + 89680900 = 11739^2 + 9470^2 .

It is a cyclic number.

It is not a de Polignac number, because 227485021 - 2¹¹ = 227482973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227485001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113742510 + 113742511.

It is an arithmetic number, because the mean of its divisors is an integer number (113742511).

Almost surely, 2^227485021 is an apocalyptic number.

It is an amenable number.

227485021 is a deficient number, since it is larger than the sum of its proper divisors (1).

227485021 is an equidigital number, since it uses as much as digits as its factorization.

227485021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 227485021 is about 15082.6065718098. The cubic root of 227485021 is about 610.4511765590.

The spelling of 227485021 in words is "two hundred twenty-seven million, four hundred eighty-five thousand, twenty-one".