4521013 has 8 divisors (see below), whose sum is σ = 5345280. Its totient is φ = 3741360.

The previous prime is 4521001. The next prime is 4521037. The reversal of 4521013 is 3101254.

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

It is a de Polignac number, because none of the positive numbers 2^k-4521013 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521053) 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, 10933 + ... + 11338.

It is an arithmetic number, because the mean of its divisors is an integer number (668160).

Almost surely, 2^4521013 is an apocalyptic number.

It is an amenable number.

4521013 is a deficient number, since it is larger than the sum of its proper divisors (824267).

4521013 is a wasteful number, since it uses less digits than its factorization.

4521013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 4521013 is about 2126.2673867602. The cubic root of 4521013 is about 165.3529390374.

Adding to 4521013 its reverse (3101254), we get a palindrome (7622267).

The spelling of 4521013 in words is "four million, five hundred twenty-one thousand, thirteen".