1283291 has 4 divisors (see below), whose sum is σ = 1297800. Its totient is φ = 1268784.

The previous prime is 1283237. The next prime is 1283297. The reversal of 1283291 is 1923821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1923821 = 223 ⋅8627.

It is a de Polignac number, because none of the positive numbers 2^k-1283291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1283291.

It is not an unprimeable number, because it can be changed into a prime (1283297) 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, 7121 + ... + 7298.

It is an arithmetic number, because the mean of its divisors is an integer number (324450).

2^1283291 is an apocalyptic number.

1283291 is a deficient number, since it is larger than the sum of its proper divisors (14509).

1283291 is an equidigital number, since it uses as much as digits as its factorization.

1283291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14508.

The product of its digits is 864, while the sum is 26.

The square root of 1283291 is about 1132.8243464898. The cubic root of 1283291 is about 108.6696786566.

The spelling of 1283291 in words is "one million, two hundred eighty-three thousand, two hundred ninety-one".