1287074 has 8 divisors (see below), whose sum is σ = 1936668. Its totient is φ = 641520.

The previous prime is 1287071. The next prime is 1287101. The reversal of 1287074 is 4707821.

It can be written as a sum of positive squares in 2 ways, for example, as 1221025 + 66049 = 1105^2 + 257^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1287071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17 + ... + 1604.

2^1287074 is an apocalyptic number.

1287074 is a deficient number, since it is larger than the sum of its proper divisors (649594).

1287074 is a wasteful number, since it uses less digits than its factorization.

1287074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

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

The square root of 1287074 is about 1134.4928382321. The cubic root of 1287074 is about 108.7763559672.

The spelling of 1287074 in words is "one million, two hundred eighty-seven thousand, seventy-four".