1286285212 has 24 divisors (see below), whose sum is σ = 2487040416. Its totient is φ = 578992128.

The previous prime is 1286285207. The next prime is 1286285213. The reversal of 1286285212 is 2125826821.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286285213) 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, 409653 + ... + 412780.

It is an arithmetic number, because the mean of its divisors is an integer number (103626684).

Almost surely, 2^1286285212 is an apocalyptic number.

It is an amenable number.

1286285212 is a deficient number, since it is larger than the sum of its proper divisors (1200755204).

1286285212 is a wasteful number, since it uses less digits than its factorization.

1286285212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822477 (or 822475 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 1286285212 is about 35864.8185831185. The cubic root of 1286285212 is about 1087.5413009725.

The spelling of 1286285212 in words is "one billion, two hundred eighty-six million, two hundred eighty-five thousand, two hundred twelve".