223481217 has 4 divisors (see below), whose sum is σ = 297974960. Its totient is φ = 148987476.

The previous prime is 223481207. The next prime is 223481239. The reversal of 223481217 is 712184322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 223481217 - 2¹¹ = 223479169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223481207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37246867 + ... + 37246872.

It is an arithmetic number, because the mean of its divisors is an integer number (74493740).

Almost surely, 2^223481217 is an apocalyptic number.

It is an amenable number.

223481217 is a deficient number, since it is larger than the sum of its proper divisors (74493743).

223481217 is an equidigital number, since it uses as much as digits as its factorization.

223481217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74493742.

The product of its digits is 5376, while the sum is 30.

The square root of 223481217 is about 14949.2881770337. The cubic root of 223481217 is about 606.8485835249.

The spelling of 223481217 in words is "two hundred twenty-three million, four hundred eighty-one thousand, two hundred seventeen".