601521 has 16 divisors (see below), whose sum is σ = 863040. Its totient is φ = 371520.

The previous prime is 601507. The next prime is 601541. The reversal of 601521 is 125106.

601521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 601521 - 2⁶ = 601457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 601521.

It is not an unprimeable number, because it can be changed into a prime (601541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3391 + ... + 3563.

It is an arithmetic number, because the mean of its divisors is an integer number (53940).

2⁶⁰¹⁵²¹ is an apocalyptic number.

601521 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

601521 is a deficient number, since it is larger than the sum of its proper divisors (261519).

601521 is a wasteful number, since it uses less digits than its factorization.

601521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 601521 is about 775.5778490906. The cubic root of 601521 is about 84.4144764519.

Adding to 601521 its reverse (125106), we get a palindrome (726627).

The spelling of 601521 in words is "six hundred one thousand, five hundred twenty-one".