226617815 has 4 divisors (see below), whose sum is σ = 271941384. Its totient is φ = 181294248.

The previous prime is 226617793. The next prime is 226617823. The reversal of 226617815 is 518716622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 518716622 = 2 ⋅259358311.

It is a cyclic number.

It is not a de Polignac number, because 226617815 - 2¹⁶ = 226552279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22661777 + ... + 22661786.

It is an arithmetic number, because the mean of its divisors is an integer number (67985346).

Almost surely, 2^226617815 is an apocalyptic number.

226617815 is a deficient number, since it is larger than the sum of its proper divisors (45323569).

226617815 is an equidigital number, since it uses as much as digits as its factorization.

226617815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45323568.

The product of its digits is 40320, while the sum is 38.

The square root of 226617815 is about 15053.8305756376. The cubic root of 226617815 is about 609.6744791908.

The spelling of 226617815 in words is "two hundred twenty-six million, six hundred seventeen thousand, eight hundred fifteen".