598139 has 4 divisors (see below), whose sum is σ = 629640. Its totient is φ = 566640.

The previous prime is 598127. The next prime is 598141. The reversal of 598139 is 931895.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931895 = 5 ⋅186379.

It is a cyclic number.

It is not a de Polignac number, because 598139 - 2⁴ = 598123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 598099 and 598108.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 598139.

It is not an unprimeable number, because it can be changed into a prime (598159) 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, 15722 + ... + 15759.

It is an arithmetic number, because the mean of its divisors is an integer number (157410).

2⁵⁹⁸¹³⁹ is an apocalyptic number.

598139 is a deficient number, since it is larger than the sum of its proper divisors (31501).

598139 is a wasteful number, since it uses less digits than its factorization.

598139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31500.

The product of its digits is 9720, while the sum is 35.

The square root of 598139 is about 773.3944659745. The cubic root of 598139 is about 84.2559746517.

It can be divided in two parts, 598 and 139, that added together give a palindrome (737).

The spelling of 598139 in words is "five hundred ninety-eight thousand, one hundred thirty-nine".