1272860002 has 8 divisors (see below), whose sum is σ = 1909481436. Its totient is φ = 636366192.

The previous prime is 1272859999. The next prime is 1272860009. The reversal of 1272860002 is 2000682721.

It can be written as a sum of positive squares in 2 ways, for example, as 1151177041 + 121682961 = 33929^2 + 11031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1272860009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973 + ... + 50464.

Almost surely, 2^1272860002 is an apocalyptic number.

1272860002 is a deficient number, since it is larger than the sum of its proper divisors (636621434).

1272860002 is a wasteful number, since it uses less digits than its factorization.

1272860002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63812.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1272860002 is about 35677.1635924158. The cubic root of 1272860002 is about 1083.7444336313.

The spelling of 1272860002 in words is "one billion, two hundred seventy-two million, eight hundred sixty thousand, two".