1288341 has 12 divisors (see below), whose sum is σ = 1871532. Its totient is φ = 854016.

The previous prime is 1288337. The next prime is 1288349. The reversal of 1288341 is 1438821.

It can be written as a sum of positive squares in 2 ways, for example, as 756900 + 531441 = 870^2 + 729^2 .

It is not a de Polignac number, because 1288341 - 2² = 1288337 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2035 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (155961).

2^1288341 is an apocalyptic number.

It is an amenable number.

1288341 is a deficient number, since it is larger than the sum of its proper divisors (583191).

1288341 is a wasteful number, since it uses less digits than its factorization.

1288341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 817 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1288341 is about 1135.0511001713. The cubic root of 1288341 is about 108.8120375324.

The spelling of 1288341 in words is "one million, two hundred eighty-eight thousand, three hundred forty-one".