226953809 has 2 divisors, whose sum is σ = 226953810. Its totient is φ = 226953808.

The previous prime is 226953763. The next prime is 226953817. The reversal of 226953809 is 908359622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225840784 + 1113025 = 15028^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 226953809 - 2²⁰ = 225905233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226953809.

It is not a weakly prime, because it can be changed into another prime (226953829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113476904 + 113476905.

It is an arithmetic number, because the mean of its divisors is an integer number (113476905).

Almost surely, 2^226953809 is an apocalyptic number.

It is an amenable number.

226953809 is a deficient number, since it is larger than the sum of its proper divisors (1).

226953809 is an equidigital number, since it uses as much as digits as its factorization.

226953809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 226953809 is about 15064.9861931566. The cubic root of 226953809 is about 609.9756408798.

The spelling of 226953809 in words is "two hundred twenty-six million, nine hundred fifty-three thousand, eight hundred nine".