538139 has 8 divisors (see below), whose sum is σ = 625920. Its totient is φ = 453096.

The previous prime is 538127. The next prime is 538147. The reversal of 538139 is 931835.

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

It is not a de Polignac number, because 538139 - 2⁴ = 538123 is a prime.

It is a d-powerful number, because it can be written as 5³ + 3 + 1 + 8 + 3¹² + 9⁴ .

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538139.

It is not an unprimeable number, because it can be changed into a prime (538159) 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, 239 + ... + 1064.

It is an arithmetic number, because the mean of its divisors is an integer number (78240).

2⁵³⁸¹³⁹ is an apocalyptic number.

538139 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

538139 is a deficient number, since it is larger than the sum of its proper divisors (87781).

538139 is a wasteful number, since it uses less digits than its factorization.

538139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369.

The product of its digits is 3240, while the sum is 29.

The square root of 538139 is about 733.5795798685. The cubic root of 538139 is about 81.3388739544.

It can be divided in two parts, 53 and 8139, that added together give a 13-th power (8192 = 2¹³).

The spelling of 538139 in words is "five hundred thirty-eight thousand, one hundred thirty-nine".