421270171 has 8 divisors (see below), whose sum is σ = 483947744. Its totient is φ = 359216640.

The previous prime is 421270159. The next prime is 421270181. The reversal of 421270171 is 171072124.

421270171 = 5479² + 5480² + ... + 5492².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421270171 - 2⁷ = 421270043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421270141) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 154560 + ... + 157261.

It is an arithmetic number, because the mean of its divisors is an integer number (60493468).

Almost surely, 2^421270171 is an apocalyptic number.

421270171 is a deficient number, since it is larger than the sum of its proper divisors (62677573).

421270171 is a wasteful number, since it uses less digits than its factorization.

421270171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312021.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 421270171 is about 20524.8671372070. The cubic root of 421270171 is about 749.6414113944.

The spelling of 421270171 in words is "four hundred twenty-one million, two hundred seventy thousand, one hundred seventy-one".