1225236 has 12 divisors (see below), whose sum is σ = 2858912. Its totient is φ = 408408.

The previous prime is 1225223. The next prime is 1225261. The reversal of 1225236 is 6325221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×1225236⁴ (a number of 25 digits) contains 4444 as substring.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51040 + ... + 51063.

2^1225236 is an apocalyptic number.

It is an amenable number.

1225236 is an abundant number, since it is smaller than the sum of its proper divisors (1633676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225236 is a wasteful number, since it uses less digits than its factorization.

1225236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102110 (or 102108 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 1225236 is about 1106.9037898571. The cubic root of 1225236 is about 107.0056188274.

The spelling of 1225236 in words is "one million, two hundred twenty-five thousand, two hundred thirty-six".