1266225 has 12 divisors (see below), whose sum is σ = 2093616. Its totient is φ = 675280.

The previous prime is 1266197. The next prime is 1266229. The reversal of 1266225 is 5226621.

It is not a de Polignac number, because 1266225 - 2⁸ = 1265969 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1266195 and 1266204.

It is not an unprimeable number, because it can be changed into a prime (1266229) 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, 8367 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (174468).

2^1266225 is an apocalyptic number.

1266225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1266225 is a deficient number, since it is larger than the sum of its proper divisors (827391).

1266225 is a wasteful number, since it uses less digits than its factorization.

1266225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16896 (or 16891 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1266225 is about 1125.2666350692. The cubic root of 1266225 is about 108.1858084008.

The spelling of 1266225 in words is "one million, two hundred sixty-six thousand, two hundred twenty-five".