1257226 has 16 divisors (see below), whose sum is σ = 1991808. Its totient is φ = 594000.

The previous prime is 1257209. The next prime is 1257229. The reversal of 1257226 is 6227521.

It is a self number, because there is not a number n which added to its sum of digits gives 1257226.

It is not an unprimeable number, because it can be changed into a prime (1257229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6856 + ... + 7036.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2^1257226 is an apocalyptic number.

1257226 is a deficient number, since it is larger than the sum of its proper divisors (734582).

1257226 is a wasteful number, since it uses less digits than its factorization.

1257226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its digits is 1680, while the sum is 25.

The square root of 1257226 is about 1121.2608973829. The cubic root of 1257226 is about 107.9289084036.

The spelling of 1257226 in words is "one million, two hundred fifty-seven thousand, two hundred twenty-six".