203259080189 has 12 divisors (see below), whose sum is σ = 223449603132. Its totient is φ = 184754021760.

The previous prime is 203259080183. The next prime is 203259080197. The reversal of 203259080189 is 981080952302.

It can be written as a sum of positive squares in 2 ways, for example, as 140617500100 + 62641580089 = 374990^2 + 250283^2 .

It is not a de Polignac number, because 203259080189 - 2¹² = 203259076093 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 (203259080183) 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, 734879 + ... + 972915.

It is an arithmetic number, because the mean of its divisors is an integer number (18620800261).

Almost surely, 2^203259080189 is an apocalyptic number.

It is an amenable number.

203259080189 is a deficient number, since it is larger than the sum of its proper divisors (20190522943).

203259080189 is a wasteful number, since it uses less digits than its factorization.

203259080189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245116 (or 245105 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 203259080189 in words is "two hundred three billion, two hundred fifty-nine million, eighty thousand, one hundred eighty-nine".