222165413 has 2 divisors, whose sum is σ = 222165414. Its totient is φ = 222165412.

The previous prime is 222165379. The next prime is 222165421. The reversal of 222165413 is 314561222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144408289 + 77757124 = 12017^2 + 8818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222165413 is a prime.

It is equal to p_12235238 and since 222165413 and 12235238 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222165473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111082706 + 111082707.

It is an arithmetic number, because the mean of its divisors is an integer number (111082707).

Almost surely, 2^222165413 is an apocalyptic number.

It is an amenable number.

222165413 is a deficient number, since it is larger than the sum of its proper divisors (1).

222165413 is an equidigital number, since it uses as much as digits as its factorization.

222165413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 222165413 is about 14905.2142889661. The cubic root of 222165413 is about 605.6552452747.

The spelling of 222165413 in words is "two hundred twenty-two million, one hundred sixty-five thousand, four hundred thirteen".