601539 has 4 divisors (see below), whose sum is σ = 802056. Its totient is φ = 401024.

The previous prime is 601507. The next prime is 601541. The reversal of 601539 is 935106.

601539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 601539 - 2⁵ = 601507 is a prime.

It is a D-number.

601539 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (601589) 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, 100254 + ... + 100259.

It is an arithmetic number, because the mean of its divisors is an integer number (200514).

2⁶⁰¹⁵³⁹ is an apocalyptic number.

601539 is a deficient number, since it is larger than the sum of its proper divisors (200517).

601539 is a wasteful number, since it uses less digits than its factorization.

601539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200516.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 601539 is about 775.5894532547. The cubic root of 601539 is about 84.4153184537.

The spelling of 601539 in words is "six hundred one thousand, five hundred thirty-nine".