4540015 has 4 divisors (see below), whose sum is σ = 5448024. Its totient is φ = 3632008.

The previous prime is 4540013. The next prime is 4540027. The reversal of 4540015 is 5100454.

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 4540015 - 2¹ = 4540013 is a prime.

It is a super-2 number, since 2×4540015² = 41223472400450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4539974 and 4540001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540013) 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, 453997 + ... + 454006.

It is an arithmetic number, because the mean of its divisors is an integer number (1362006).

Almost surely, 2^4540015 is an apocalyptic number.

4540015 is a deficient number, since it is larger than the sum of its proper divisors (908009).

4540015 is an equidigital number, since it uses as much as digits as its factorization.

4540015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908008.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4540015 is about 2130.7310951878. The cubic root of 4540015 is about 165.5842769229.

Adding to 4540015 its reverse (5100454), we get a palindrome (9640469).

The spelling of 4540015 in words is "four million, five hundred forty thousand, fifteen".