1287274 has 8 divisors (see below), whose sum is σ = 2044548. Its totient is φ = 605760.

The previous prime is 1287239. The next prime is 1287289. The reversal of 1287274 is 4727821.

It can be written as a sum of positive squares in 2 ways, for example, as 1030225 + 257049 = 1015^2 + 507^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18897 + ... + 18964.

2^1287274 is an apocalyptic number.

1287274 is a deficient number, since it is larger than the sum of its proper divisors (757274).

1287274 is a wasteful number, since it uses less digits than its factorization.

1287274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37880.

The product of its digits is 6272, while the sum is 31.

The square root of 1287274 is about 1134.5809799217. The cubic root of 1287274 is about 108.7819899723.

The spelling of 1287274 in words is "one million, two hundred eighty-seven thousand, two hundred seventy-four".