538118231 has 8 divisors (see below), whose sum is σ = 616767360. Its totient is φ = 459912888.

The previous prime is 538118227. The next prime is 538118237. The reversal of 538118231 is 132811835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538118231 - 2² = 538118227 is a prime.

It is a super-2 number, since 2×538118231² = 579142461069138722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538118237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108341 + ... + 113198.

It is an arithmetic number, because the mean of its divisors is an integer number (77095920).

Almost surely, 2^538118231 is an apocalyptic number.

538118231 is a deficient number, since it is larger than the sum of its proper divisors (78649129).

538118231 is a wasteful number, since it uses less digits than its factorization.

538118231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221893.

The product of its digits is 5760, while the sum is 32.

The square root of 538118231 is about 23197.3755196574. The cubic root of 538118231 is about 813.3782754026.

The spelling of 538118231 in words is "five hundred thirty-eight million, one hundred eighteen thousand, two hundred thirty-one".