4513540421 has 8 divisors (see below), whose sum is σ = 5116564320. Its totient is φ = 3947063472.

The previous prime is 4513540403. The next prime is 4513540439. The reversal of 4513540421 is 1240453154.

4513540421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4513540403) and next prime (4513540439).

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

It is a cyclic number.

It is not a de Polignac number, because 4513540421 - 2¹⁸ = 4513278277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4513540921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9136475 + ... + 9136968.

It is an arithmetic number, because the mean of its divisors is an integer number (639570540).

Almost surely, 2^4513540421 is an apocalyptic number.

It is an amenable number.

4513540421 is a deficient number, since it is larger than the sum of its proper divisors (603023899).

4513540421 is a wasteful number, since it uses less digits than its factorization.

4513540421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18273475.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4513540421 is about 67182.8878584420. The cubic root of 4513540421 is about 1652.6178732074.

Adding to 4513540421 its reverse (1240453154), we get a palindrome (5753993575).

The spelling of 4513540421 in words is "four billion, five hundred thirteen million, five hundred forty thousand, four hundred twenty-one".