1225257 has 16 divisors (see below), whose sum is σ = 1804032. Its totient is φ = 733520.

The previous prime is 1225223. The next prime is 1225261. The reversal of 1225257 is 7525221.

It is a cyclic number.

It is not a de Polignac number, because 1225257 - 2⁷ = 1225129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3358 + ... + 3704.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2^1225257 is an apocalyptic number.

It is an amenable number.

1225257 is a deficient number, since it is larger than the sum of its proper divisors (578775).

1225257 is a wasteful number, since it uses less digits than its factorization.

1225257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468.

The product of its digits is 1400, while the sum is 24.

The square root of 1225257 is about 1106.9132757357. The cubic root of 1225257 is about 107.0062301668.

The spelling of 1225257 in words is "one million, two hundred twenty-five thousand, two hundred fifty-seven".