222415313 has 4 divisors (see below), whose sum is σ = 232085568. Its totient is φ = 212745060.

The previous prime is 222415223. The next prime is 222415343. The reversal of 222415313 is 313514222.

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 a cyclic number.

It is not a de Polignac number, because 222415313 - 2²⁰ = 221366737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9670231 = 222415313 / (2 + 2 + 2 + 4 + 1 + 5 + 3 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222415343) 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, 4835093 + ... + 4835138.

It is an arithmetic number, because the mean of its divisors is an integer number (58021392).

Almost surely, 2^222415313 is an apocalyptic number.

222415313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

222415313 is a deficient number, since it is larger than the sum of its proper divisors (9670255).

222415313 is an equidigital number, since it uses as much as digits as its factorization.

222415313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670254.

The product of its digits is 1440, while the sum is 23.

The square root of 222415313 is about 14913.5949053204. The cubic root of 222415313 is about 605.8822481040.

Adding to 222415313 its reverse (313514222), we get a palindrome (535929535).

The spelling of 222415313 in words is "two hundred twenty-two million, four hundred fifteen thousand, three hundred thirteen".