538133311 has 4 divisors (see below), whose sum is σ = 538196400. Its totient is φ = 538070224.

The previous prime is 538133293. The next prime is 538133329. The reversal of 538133311 is 113331835.

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 is an interprime number because it is at equal distance from previous prime (538133293) and next prime (538133329).

It is a cyclic number.

It is not a de Polignac number, because 538133311 - 2¹⁵ = 538100543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538133311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538133411) 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 in 3 ways as a sum of consecutive naturals, for example, 16291 + ... + 36628.

It is an arithmetic number, because the mean of its divisors is an integer number (134549100).

Almost surely, 2^538133311 is an apocalyptic number.

538133311 is a deficient number, since it is larger than the sum of its proper divisors (63089).

538133311 is a wasteful number, since it uses less digits than its factorization.

538133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63088.

The product of its digits is 3240, while the sum is 28.

The square root of 538133311 is about 23197.7005541498. The cubic root of 538133311 is about 813.3858732557.

The spelling of 538133311 in words is "five hundred thirty-eight million, one hundred thirty-three thousand, three hundred eleven".