1253835812 has 12 divisors (see below), whose sum is σ = 2196606720. Its totient is φ = 626233896.

The previous prime is 1253835811. The next prime is 1253835857. The reversal of 1253835812 is 2185383521.

It is not an unprimeable number, because it can be changed into a prime (1253835811) 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 3 ways as a sum of consecutive naturals, for example, 166868 + ... + 174219.

It is an arithmetic number, because the mean of its divisors is an integer number (183050560).

Almost surely, 2^1253835812 is an apocalyptic number.

It is an amenable number.

1253835812 is a deficient number, since it is larger than the sum of its proper divisors (942770908).

1253835812 is a wasteful number, since it uses less digits than its factorization.

1253835812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342010 (or 342008 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 1253835812 is about 35409.5440806571. The cubic root of 1253835812 is about 1078.3180873767.

The spelling of 1253835812 in words is "one billion, two hundred fifty-three million, eight hundred thirty-five thousand, eight hundred twelve".