1252812 has 24 divisors (see below), whose sum is σ = 3189312. Its totient is φ = 379600.

The previous prime is 1252799. The next prime is 1252817. The reversal of 1252812 is 2182521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1252817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4614 + ... + 4877.

It is an arithmetic number, because the mean of its divisors is an integer number (132888).

2^1252812 is an apocalyptic number.

1252812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252812 is an abundant number, since it is smaller than the sum of its proper divisors (1936500).

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

1252812 is a wasteful number, since it uses less digits than its factorization.

1252812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9509 (or 9507 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 1252812 is about 1119.2908469205. The cubic root of 1252812 is about 107.8024509432.

The spelling of 1252812 in words is "one million, two hundred fifty-two thousand, eight hundred twelve".