1285606612 has 6 divisors (see below), whose sum is σ = 2249811578. Its totient is φ = 642803304.

The previous prime is 1285606607. The next prime is 1285606631. The reversal of 1285606612 is 2166065821.

It can be written as a sum of positive squares in only one way, i.e., 676208016 + 609398596 = 26004^2 + 24686^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160700823 + ... + 160700830.

Almost surely, 2^1285606612 is an apocalyptic number.

It is an amenable number.

1285606612 is a deficient number, since it is larger than the sum of its proper divisors (964204966).

1285606612 is a wasteful number, since it uses less digits than its factorization.

1285606612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321401657 (or 321401655 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1285606612 is about 35855.3568103847. The cubic root of 1285606612 is about 1087.3500174894.

The spelling of 1285606612 in words is "one billion, two hundred eighty-five million, six hundred six thousand, six hundred twelve".