1253812 has 18 divisors (see below), whose sum is σ = 2552802. Its totient is φ = 537264.

The previous prime is 1253803. The next prime is 1253831. The reversal of 1253812 is 2183521.

It can be written as a sum of positive squares in only one way, i.e., 682276 + 571536 = 826^2 + 756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3003 + ... + 3394.

2^1253812 is an apocalyptic number.

It is an amenable number.

1253812 is an abundant number, since it is smaller than the sum of its proper divisors (1298990).

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

1253812 is a wasteful number, since it uses less digits than its factorization.

1253812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415 (or 6406 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1253812 is about 1119.7374692311. The cubic root of 1253812 is about 107.8311261105.

It can be divided in two parts, 12 and 53812, that added together give a square (53824 = 232²).

The spelling of 1253812 in words is "one million, two hundred fifty-three thousand, eight hundred twelve".