424515121 has 4 divisors (see below), whose sum is σ = 424620144. Its totient is φ = 424410100.

The previous prime is 424515083. The next prime is 424515131. The reversal of 424515121 is 121515424.

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 424515121 - 2¹¹ = 424513073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424515131) 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, 46195 + ... + 54616.

It is an arithmetic number, because the mean of its divisors is an integer number (106155036).

Almost surely, 2^424515121 is an apocalyptic number.

It is an amenable number.

424515121 is a deficient number, since it is larger than the sum of its proper divisors (105023).

424515121 is a wasteful number, since it uses less digits than its factorization.

424515121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105022.

The product of its digits is 1600, while the sum is 25.

The square root of 424515121 is about 20603.7647288062. The cubic root of 424515121 is about 751.5612638333.

It can be divided in two parts, 424515 and 121, that multiplied together give a palindrome (51366315).

The spelling of 424515121 in words is "four hundred twenty-four million, five hundred fifteen thousand, one hundred twenty-one".