1208591 has 2 divisors, whose sum is σ = 1208592. Its totient is φ = 1208590.

The previous prime is 1208573. The next prime is 1208651. The reversal of 1208591 is 1958021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1208591 - 2¹⁴ = 1192207 is a prime.

It is a Chen prime.

It is equal to p₉₃₅₁₈ and since 1208591 and 93518 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1208591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1208521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604295 + 604296.

It is an arithmetic number, because the mean of its divisors is an integer number (604296).

2^1208591 is an apocalyptic number.

1208591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208591 is an equidigital number, since it uses as much as digits as its factorization.

1208591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1208591 is about 1099.3593588995. The cubic root of 1208591 is about 106.5188458057.

The spelling of 1208591 in words is "one million, two hundred eight thousand, five hundred ninety-one".