420545001 has 8 divisors (see below), whose sum is σ = 562752064. Its totient is φ = 279350640.

The previous prime is 420544991. The next prime is 420545003. The reversal of 420545001 is 100545024.

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

It is not a de Polignac number, because 420545001 - 2¹⁵ = 420512233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420545003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252205 + ... + 253866.

It is an arithmetic number, because the mean of its divisors is an integer number (70344008).

Almost surely, 2^420545001 is an apocalyptic number.

It is an amenable number.

420545001 is a deficient number, since it is larger than the sum of its proper divisors (142207063).

420545001 is a wasteful number, since it uses less digits than its factorization.

420545001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506351.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 420545001 is about 20507.1938840983. The cubic root of 420545001 is about 749.2110227554.

The spelling of 420545001 in words is "four hundred twenty million, five hundred forty-five thousand, one".