4513121 has 4 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 4490244.

The previous prime is 4513111. The next prime is 4513123. The reversal of 4513121 is 1213154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4513121 - 2⁶ = 4513057 is a prime.

It is a super-2 number, since 2×4513121² = 40736522321282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4513121.

It is not an unprimeable number, because it can be changed into a prime (4513123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11141 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^4513121 is an apocalyptic number.

It is an amenable number.

4513121 is a deficient number, since it is larger than the sum of its proper divisors (22879).

4513121 is a wasteful number, since it uses less digits than its factorization.

4513121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22878.

The product of its digits is 120, while the sum is 17.

The square root of 4513121 is about 2124.4107418294. The cubic root of 4513121 is about 165.2566681752.

Adding to 4513121 its reverse (1213154), we get a palindrome (5726275).

The spelling of 4513121 in words is "four million, five hundred thirteen thousand, one hundred twenty-one".