421143115 has 4 divisors (see below), whose sum is σ = 505371744. Its totient is φ = 336914488.

The previous prime is 421143071. The next prime is 421143127. The reversal of 421143115 is 511341124.

421143115 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421143115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42114307 + ... + 42114316.

It is an arithmetic number, because the mean of its divisors is an integer number (126342936).

Almost surely, 2^421143115 is an apocalyptic number.

421143115 is a deficient number, since it is larger than the sum of its proper divisors (84228629).

421143115 is an equidigital number, since it uses as much as digits as its factorization.

421143115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84228628.

The product of its digits is 480, while the sum is 22.

The square root of 421143115 is about 20521.7717315051. The cubic root of 421143115 is about 749.5660393230.

Adding to 421143115 its reverse (511341124), we get a palindrome (932484239).

The spelling of 421143115 in words is "four hundred twenty-one million, one hundred forty-three thousand, one hundred fifteen".