222627149 has 2 divisors, whose sum is σ = 222627150. Its totient is φ = 222627148.

The previous prime is 222627127. The next prime is 222627157. The reversal of 222627149 is 941726222.

222627149 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202151524 + 20475625 = 14218^2 + 4525^2 .

It is a cyclic number.

It is not a de Polignac number, because 222627149 - 2¹⁶ = 222561613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222627169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111313574 + 111313575.

It is an arithmetic number, because the mean of its divisors is an integer number (111313575).

Almost surely, 2^222627149 is an apocalyptic number.

It is an amenable number.

222627149 is a deficient number, since it is larger than the sum of its proper divisors (1).

222627149 is an equidigital number, since it uses as much as digits as its factorization.

222627149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 222627149 is about 14920.6953256207. The cubic root of 222627149 is about 606.0745414375.

The spelling of 222627149 in words is "two hundred twenty-two million, six hundred twenty-seven thousand, one hundred forty-nine".