226181959 has 4 divisors (see below), whose sum is σ = 229280416. Its totient is φ = 223083504.

The previous prime is 226181941. The next prime is 226181993. The reversal of 226181959 is 959181622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226181959 - 2²¹ = 224084807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226181929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549119 + ... + 1549264.

It is an arithmetic number, because the mean of its divisors is an integer number (57320104).

Almost surely, 2^226181959 is an apocalyptic number.

226181959 is a deficient number, since it is larger than the sum of its proper divisors (3098457).

226181959 is an equidigital number, since it uses as much as digits as its factorization.

226181959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098456.

The product of its digits is 77760, while the sum is 43.

The square root of 226181959 is about 15039.3470270487. The cubic root of 226181959 is about 609.2833642756.

The spelling of 226181959 in words is "two hundred twenty-six million, one hundred eighty-one thousand, nine hundred fifty-nine".