537139 has 4 divisors (see below), whose sum is σ = 545224. Its totient is φ = 529056.

The previous prime is 537133. The next prime is 537143. The reversal of 537139 is 931735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 537139 - 2⁷ = 537011 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (537133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942 + ... + 4075.

It is an arithmetic number, because the mean of its divisors is an integer number (136306).

2⁵³⁷¹³⁹ is an apocalyptic number.

537139 is a deficient number, since it is larger than the sum of its proper divisors (8085).

537139 is an equidigital number, since it uses as much as digits as its factorization.

537139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8084.

The product of its digits is 2835, while the sum is 28.

The square root of 537139 is about 732.8976736216. The cubic root of 537139 is about 81.2884598985.

It can be divided in two parts, 537 and 139, that added together give a palindrome (676).

The spelling of 537139 in words is "five hundred thirty-seven thousand, one hundred thirty-nine".