1283591 has 2 divisors, whose sum is σ = 1283592. Its totient is φ = 1283590.

The previous prime is 1283573. The next prime is 1283603. The reversal of 1283591 is 1953821.

It is a strong prime.

It is an emirp because it is prime and its reverse (1953821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283591 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641795 + 641796.

It is an arithmetic number, because the mean of its divisors is an integer number (641796).

2^1283591 is an apocalyptic number.

1283591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283591 is an equidigital number, since it uses as much as digits as its factorization.

1283591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 1283591 is about 1132.9567511604. The cubic root of 1283591 is about 108.6781460433.

The spelling of 1283591 in words is "one million, two hundred eighty-three thousand, five hundred ninety-one".