225341813 has 4 divisors (see below), whose sum is σ = 225376908. Its totient is φ = 225306720.

The previous prime is 225341771. The next prime is 225341839. The reversal of 225341813 is 318143522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318143522 = 2 ⋅159071761.

It can be written as a sum of positive squares in 2 ways, for example, as 210772324 + 14569489 = 14518^2 + 3817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225341813 is a prime.

It is a super-2 number, since 2×225341813² = 101557865372253938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225341873) by changing a digit.

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, 4856 + ... + 21777.

It is an arithmetic number, because the mean of its divisors is an integer number (56344227).

Almost surely, 2^225341813 is an apocalyptic number.

It is an amenable number.

225341813 is a deficient number, since it is larger than the sum of its proper divisors (35095).

225341813 is an equidigital number, since it uses as much as digits as its factorization.

225341813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35094.

The product of its digits is 5760, while the sum is 29.

The square root of 225341813 is about 15011.3894426865. The cubic root of 225341813 is about 608.5280401242.

The spelling of 225341813 in words is "two hundred twenty-five million, three hundred forty-one thousand, eight hundred thirteen".