538013189 has 12 divisors (see below), whose sum is σ = 642769164. Its totient is φ = 448689024.

The previous prime is 538013173. The next prime is 538013197. The reversal of 538013189 is 981310835.

It can be written as a sum of positive squares in 2 ways, for example, as 243890689 + 294122500 = 15617^2 + 17150^2 .

It is not a de Polignac number, because 538013189 - 2⁴ = 538013173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538013159) 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, 146564 + ... + 150189.

It is an arithmetic number, because the mean of its divisors is an integer number (53564097).

Almost surely, 2^538013189 is an apocalyptic number.

It is an amenable number.

538013189 is a deficient number, since it is larger than the sum of its proper divisors (104755975).

538013189 is a wasteful number, since it uses less digits than its factorization.

538013189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296804 (or 296797 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 538013189 is about 23195.1113168271. Note that the first 3 decimals coincide. The cubic root of 538013189 is about 813.3253474797.

The spelling of 538013189 in words is "five hundred thirty-eight million, thirteen thousand, one hundred eighty-nine".