1083198253 has 4 divisors (see below), whose sum is σ = 1083266460. Its totient is φ = 1083130048.

The previous prime is 1083198247. The next prime is 1083198283. The reversal of 1083198253 is 3528913801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 99560484 + 983637769 = 9978^2 + 31363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083198253 - 2⁹ = 1083197741 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083198283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3651 + ... + 46687.

It is an arithmetic number, because the mean of its divisors is an integer number (270816615).

Almost surely, 2^1083198253 is an apocalyptic number.

It is an amenable number.

1083198253 is a deficient number, since it is larger than the sum of its proper divisors (68207).

1083198253 is an equidigital number, since it uses as much as digits as its factorization.

1083198253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68206.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1083198253 is about 32911.9773486796. The cubic root of 1083198253 is about 1026.9973358016.

The spelling of 1083198253 in words is "one billion, eighty-three million, one hundred ninety-eight thousand, two hundred fifty-three".