421155214 has 4 divisors (see below), whose sum is σ = 631732824. Its totient is φ = 210577606.

The previous prime is 421155199. The next prime is 421155221. The reversal of 421155214 is 412551124.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 105288802 + ... + 105288805.

It is an arithmetic number, because the mean of its divisors is an integer number (157933206).

Almost surely, 2^421155214 is an apocalyptic number.

421155214 is a deficient number, since it is larger than the sum of its proper divisors (210577610).

421155214 is a wasteful number, since it uses less digits than its factorization.

421155214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210577609.

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

The square root of 421155214 is about 20522.0665138772. The cubic root of 421155214 is about 749.5732173363.

The spelling of 421155214 in words is "four hundred twenty-one million, one hundred fifty-five thousand, two hundred fourteen".