226540001 has 4 divisors (see below), whose sum is σ = 226814100. Its totient is φ = 226265904.

The previous prime is 226539997. The next prime is 226540007. The reversal of 226540001 is 100045622.

It is a happy number.

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 126540001 + 100000000 = 11249^2 + 10000^2 .

It is a cyclic number.

It is not a de Polignac number, because 226540001 - 2² = 226539997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226540007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135806 + ... + 137463.

It is an arithmetic number, because the mean of its divisors is an integer number (56703525).

Almost surely, 2^226540001 is an apocalyptic number.

It is an amenable number.

226540001 is a deficient number, since it is larger than the sum of its proper divisors (274099).

226540001 is an equidigital number, since it uses as much as digits as its factorization.

226540001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274098.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 226540001 is about 15051.2458288342. The cubic root of 226540001 is about 609.6046896777.

Adding to 226540001 its reverse (100045622), we get a palindrome (326585623).

The spelling of 226540001 in words is "two hundred twenty-six million, five hundred forty thousand, one".