1287272 has 32 divisors (see below), whose sum is σ = 2795520. Its totient is φ = 544320.

The previous prime is 1287239. The next prime is 1287289. The reversal of 1287272 is 2727821.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

1287272 is a modest number, since divided by 7272 gives 128 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7022 + ... + 7202.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

2^1287272 is an apocalyptic number.

It is an amenable number.

1287272 is an abundant number, since it is smaller than the sum of its proper divisors (1508248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1287272 is a wasteful number, since it uses less digits than its factorization.

1287272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 317 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 1287272 is about 1134.5800985387. The cubic root of 1287272 is about 108.7819336352.

The spelling of 1287272 in words is "one million, two hundred eighty-seven thousand, two hundred seventy-two".