226501091 has 2 divisors, whose sum is σ = 226501092. Its totient is φ = 226501090.

The previous prime is 226501043. The next prime is 226501117. The reversal of 226501091 is 190105622.

It is an a-pointer prime, because the next prime (226501117) can be obtained adding 226501091 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226501091 - 2²² = 222306787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226501091.

It is not a weakly prime, because it can be changed into another prime (226500091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113250545 + 113250546.

It is an arithmetic number, because the mean of its divisors is an integer number (113250546).

Almost surely, 2^226501091 is an apocalyptic number.

226501091 is a deficient number, since it is larger than the sum of its proper divisors (1).

226501091 is an equidigital number, since it uses as much as digits as its factorization.

226501091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 226501091 is about 15049.9531892960. The cubic root of 226501091 is about 609.5697862368.

The spelling of 226501091 in words is "two hundred twenty-six million, five hundred one thousand, ninety-one".