226144505 has 4 divisors (see below), whose sum is σ = 271373412. Its totient is φ = 180915600.

The previous prime is 226144459. The next prime is 226144537. The reversal of 226144505 is 505441622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112423609 + 113720896 = 10603^2 + 10664^2 .

It is not a de Polignac number, because 226144505 - 2⁸ = 226144249 is a prime.

It is a super-2 number, since 2×226144505² = 102282674283390050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22614446 + ... + 22614455.

It is an arithmetic number, because the mean of its divisors is an integer number (67843353).

Almost surely, 2^226144505 is an apocalyptic number.

It is an amenable number.

226144505 is a deficient number, since it is larger than the sum of its proper divisors (45228907).

226144505 is an equidigital number, since it uses as much as digits as its factorization.

226144505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45228906.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 226144505 is about 15038.1017751577. The cubic root of 226144505 is about 609.2497315330.

The spelling of 226144505 in words is "two hundred twenty-six million, one hundred forty-four thousand, five hundred five".