1225269 has 12 divisors (see below), whose sum is σ = 1787500. Its totient is φ = 808704.

The previous prime is 1225261. The next prime is 1225283. The reversal of 1225269 is 9625221.

It can be written as a sum of positive squares in 2 ways, for example, as 680625 + 544644 = 825^2 + 738^2 .

It is not a de Polignac number, because 1225269 - 2³ = 1225261 is a prime.

It is a super-2 number, since 2×1225269² = 3002568244722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357 + ... + 1605.

2^1225269 is an apocalyptic number.

It is an amenable number.

1225269 is a deficient number, since it is larger than the sum of its proper divisors (562231).

1225269 is a wasteful number, since it uses less digits than its factorization.

1225269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1361 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1225269 is about 1106.9186962013. The cubic root of 1225269 is about 107.0065795005.

It can be divided in two parts, 12252 and 69, that added together give a palindrome (12321).

The spelling of 1225269 in words is "one million, two hundred twenty-five thousand, two hundred sixty-nine".