222397569 has 15 divisors (see below), whose sum is σ = 332424147. Its totient is φ = 148175568.

The previous prime is 222397541. The next prime is 222397573. The reversal of 222397569 is 965793222.

It is a happy number.

The square root of 222397569 is 14913.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 70812225 + 151585344 = 8415^2 + 12312^2 .

It is not a de Polignac number, because 222397569 - 2⁵ = 222397537 is a prime.

It is a super-2 number, since 2×222397569² = 98921357394219522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222397529) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 133389 + ... + 135045.

Almost surely, 2^222397569 is an apocalyptic number.

222397569 is the 14913-rd square number.

222397569 is the 7457-th centered octagonal number.

It is an amenable number.

222397569 is a deficient number, since it is larger than the sum of its proper divisors (110026578).

222397569 is an frugal number, since it uses more digits than its factorization.

222397569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 1660 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The cubic root of 222397569 is about 605.8661355136.

The spelling of 222397569 in words is "two hundred twenty-two million, three hundred ninety-seven thousand, five hundred sixty-nine".