222515413 has 2 divisors, whose sum is σ = 222515414. Its totient is φ = 222515412.

The previous prime is 222515389. The next prime is 222515417. The reversal of 222515413 is 314515222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193710724 + 28804689 = 13918^2 + 5367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222515413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222515417) 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 as a sum of consecutive naturals, namely, 111257706 + 111257707.

It is an arithmetic number, because the mean of its divisors is an integer number (111257707).

Almost surely, 2^222515413 is an apocalyptic number.

It is an amenable number.

222515413 is a deficient number, since it is larger than the sum of its proper divisors (1).

222515413 is an equidigital number, since it uses as much as digits as its factorization.

222515413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 222515413 is about 14916.9505261632. The cubic root of 222515413 is about 605.9731287122.

The spelling of 222515413 in words is "two hundred twenty-two million, five hundred fifteen thousand, four hundred thirteen".