198008053 has 12 divisors (see below), whose sum is σ = 207419940. Its totient is φ = 188952192.

The previous prime is 198008033. The next prime is 198008089. The reversal of 198008053 is 350800891.

It can be written as a sum of positive squares in 6 ways, for example, as 114961284 + 83046769 = 10722^2 + 9113^2 .

It is not a de Polignac number, because 198008053 - 2⁹ = 198007541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198008003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71193 + ... + 73921.

It is an arithmetic number, because the mean of its divisors is an integer number (17284995).

Almost surely, 2^198008053 is an apocalyptic number.

It is an amenable number.

198008053 is a deficient number, since it is larger than the sum of its proper divisors (9411887).

198008053 is an equidigital number, since it uses as much as digits as its factorization.

198008053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 198008053 is about 14071.5334274556. The cubic root of 198008053 is about 582.8555700232.

The spelling of 198008053 in words is "one hundred ninety-eight million, eight thousand, fifty-three".