421471135 has 4 divisors (see below), whose sum is σ = 505765368. Its totient is φ = 337176904.

The previous prime is 421471117. The next prime is 421471151. The reversal of 421471135 is 531174124.

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-421471135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42147109 + ... + 42147118.

It is an arithmetic number, because the mean of its divisors is an integer number (126441342).

Almost surely, 2^421471135 is an apocalyptic number.

421471135 is a deficient number, since it is larger than the sum of its proper divisors (84294233).

421471135 is an equidigital number, since it uses as much as digits as its factorization.

421471135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84294232.

The product of its digits is 3360, while the sum is 28.

The square root of 421471135 is about 20529.7621759240. The cubic root of 421471135 is about 749.7605961818.

The spelling of 421471135 in words is "four hundred twenty-one million, four hundred seventy-one thousand, one hundred thirty-five".