203198053 has 2 divisors, whose sum is σ = 203198054. Its totient is φ = 203198052.

The previous prime is 203198003. The next prime is 203198057. The reversal of 203198053 is 350891302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202151524 + 1046529 = 14218^2 + 1023^2 .

It is a cyclic number.

It is not a de Polignac number, because 203198053 - 2²¹ = 201100901 is a prime.

It is equal to p_11246188 and since 203198053 and 11246188 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203198057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101599026 + 101599027.

It is an arithmetic number, because the mean of its divisors is an integer number (101599027).

Almost surely, 2^203198053 is an apocalyptic number.

It is an amenable number.

203198053 is a deficient number, since it is larger than the sum of its proper divisors (1).

203198053 is an equidigital number, since it uses as much as digits as its factorization.

203198053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 203198053 is about 14254.7554521289. The cubic root of 203198053 is about 587.9041340696.

The spelling of 203198053 in words is "two hundred three million, one hundred ninety-eight thousand, fifty-three".