1243359 has 12 divisors (see below), whose sum is σ = 1934296. Its totient is φ = 765072.

The previous prime is 1243349. The next prime is 1243367. The reversal of 1243359 is 9533421.

It is not a de Polignac number, because 1243359 - 2⁴ = 1243343 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243309) 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, 5197 + ... + 5430.

2^1243359 is an apocalyptic number.

1243359 is a deficient number, since it is larger than the sum of its proper divisors (690937).

1243359 is a wasteful number, since it uses less digits than its factorization.

1243359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646 (or 10643 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 1243359 is about 1115.0600880670. The cubic root of 1243359 is about 107.5306276531.

The spelling of 1243359 in words is "one million, two hundred forty-three thousand, three hundred fifty-nine".