223228451 has 4 divisors (see below), whose sum is σ = 223337400. Its totient is φ = 223119504.

The previous prime is 223228433. The next prime is 223228493. The reversal of 223228451 is 154822322.

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 223228451 - 2¹⁰ = 223227427 is a prime.

It is a super-4 number, since 4×223228451⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223228651) 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, 51341 + ... + 55518.

It is an arithmetic number, because the mean of its divisors is an integer number (55834350).

Almost surely, 2^223228451 is an apocalyptic number.

223228451 is a deficient number, since it is larger than the sum of its proper divisors (108949).

223228451 is a wasteful number, since it uses less digits than its factorization.

223228451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108948.

The product of its digits is 7680, while the sum is 29.

The square root of 223228451 is about 14940.8316702920. The cubic root of 223228451 is about 606.6197073837.

The spelling of 223228451 in words is "two hundred twenty-three million, two hundred twenty-eight thousand, four hundred fifty-one".