226491907 has 2 divisors, whose sum is σ = 226491908. Its totient is φ = 226491906.

The previous prime is 226491899. The next prime is 226492031. The reversal of 226491907 is 709194622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226491907 - 2³ = 226491899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226491907.

It is not a weakly prime, because it can be changed into another prime (226491007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113245953 + 113245954.

It is an arithmetic number, because the mean of its divisors is an integer number (113245954).

Almost surely, 2^226491907 is an apocalyptic number.

226491907 is a deficient number, since it is larger than the sum of its proper divisors (1).

226491907 is an equidigital number, since it uses as much as digits as its factorization.

226491907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 226491907 is about 15049.6480689749. The cubic root of 226491907 is about 609.5615473293.

The spelling of 226491907 in words is "two hundred twenty-six million, four hundred ninety-one thousand, nine hundred seven".