1288612 has 12 divisors (see below), whose sum is σ = 2428636. Its totient is φ = 594720.

The previous prime is 1288607. The next prime is 1288613. The reversal of 1288612 is 2168821.

It can be written as a sum of positive squares in 2 ways, for example, as 320356 + 968256 = 566^2 + 984^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1288613) 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, 12339 + ... + 12442.

2^1288612 is an apocalyptic number.

It is an amenable number.

1288612 is a deficient number, since it is larger than the sum of its proper divisors (1140024).

1288612 is a wasteful number, since it uses less digits than its factorization.

1288612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24798 (or 24796 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 1288612 is about 1135.1704717795. The cubic root of 1288612 is about 108.8196664637.

The spelling of 1288612 in words is "one million, two hundred eighty-eight thousand, six hundred twelve".