1198583 has 2 divisors, whose sum is σ = 1198584. Its totient is φ = 1198582.

The previous prime is 1198537. The next prime is 1198607. The reversal of 1198583 is 3858911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198583 - 2¹⁶ = 1133047 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1198513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599291 + 599292.

It is an arithmetic number, because the mean of its divisors is an integer number (599292).

2^1198583 is an apocalyptic number.

1198583 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198583 is an equidigital number, since it uses as much as digits as its factorization.

1198583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 35.

The square root of 1198583 is about 1094.7981549126. The cubic root of 1198583 is about 106.2240130217.

It can be divided in two parts, 11985 and 83, that multiplied together give a triangular number (994755 = T₁₄₁₀).

The spelling of 1198583 in words is "one million, one hundred ninety-eight thousand, five hundred eighty-three".