1253966 has 16 divisors (see below), whose sum is σ = 2200704. Its totient is φ = 524664.

The previous prime is 1253963. The next prime is 1253969. The reversal of 1253966 is 6693521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1253963) and next prime (1253969).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253963) 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, 440 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (137544).

2^1253966 is an apocalyptic number.

1253966 is a deficient number, since it is larger than the sum of its proper divisors (946738).

1253966 is a wasteful number, since it uses less digits than its factorization.

1253966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its digits is 9720, while the sum is 32.

The square root of 1253966 is about 1119.8062332386. The cubic root of 1253966 is about 107.8355407313.

The spelling of 1253966 in words is "one million, two hundred fifty-three thousand, nine hundred sixty-six".