5145021 has 12 divisors (see below), whose sum is σ = 8493472. Its totient is φ = 2939976.

The previous prime is 5145017. The next prime is 5145037. The reversal of 5145021 is 1205415.

5145021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5145021 - 2² = 5145017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5144985 and 5145003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40771 + ... + 40896.

Almost surely, 2^5145021 is an apocalyptic number.

It is an amenable number.

5145021 is a deficient number, since it is larger than the sum of its proper divisors (3348451).

5145021 is a wasteful number, since it uses less digits than its factorization.

5145021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81680 (or 81677 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 5145021 is about 2268.2638735385. The cubic root of 5145021 is about 172.6350800802.

The spelling of 5145021 in words is "five million, one hundred forty-five thousand, twenty-one".