226185893 has 2 divisors, whose sum is σ = 226185894. Its totient is φ = 226185892.

The previous prime is 226185863. The next prime is 226185917. The reversal of 226185893 is 398581622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212518084 + 13667809 = 14578^2 + 3697^2 .

It is a cyclic number.

It is not a de Polignac number, because 226185893 - 2⁸ = 226185637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226185863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113092946 + 113092947.

It is an arithmetic number, because the mean of its divisors is an integer number (113092947).

Almost surely, 2^226185893 is an apocalyptic number.

It is an amenable number.

226185893 is a deficient number, since it is larger than the sum of its proper divisors (1).

226185893 is an equidigital number, since it uses as much as digits as its factorization.

226185893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 226185893 is about 15039.4778167329. The cubic root of 226185893 is about 609.2868966924.

The spelling of 226185893 in words is "two hundred twenty-six million, one hundred eighty-five thousand, eight hundred ninety-three".