1286201606 has 16 divisors (see below), whose sum is σ = 2050024464. Its totient is φ = 603128064.

The previous prime is 1286201603. The next prime is 1286201617. The reversal of 1286201606 is 6061026821.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286201603) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 57215 + ... + 76458.

It is an arithmetic number, because the mean of its divisors is an integer number (128126529).

Almost surely, 2^1286201606 is an apocalyptic number.

1286201606 is a deficient number, since it is larger than the sum of its proper divisors (763822858).

1286201606 is a wasteful number, since it uses less digits than its factorization.

1286201606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133975.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1286201606 is about 35863.6529929677. The cubic root of 1286201606 is about 1087.5177377826.

The spelling of 1286201606 in words is "one billion, two hundred eighty-six million, two hundred one thousand, six hundred six".