421275039 has 4 divisors (see below), whose sum is σ = 561700056. Its totient is φ = 280850024.

The previous prime is 421275037. The next prime is 421275059. The reversal of 421275039 is 930572124.

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

It is a cyclic number.

It is not a de Polignac number, because 421275039 - 2¹ = 421275037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421275037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70212504 + ... + 70212509.

It is an arithmetic number, because the mean of its divisors is an integer number (140425014).

Almost surely, 2^421275039 is an apocalyptic number.

421275039 is a deficient number, since it is larger than the sum of its proper divisors (140425017).

421275039 is a wasteful number, since it uses less digits than its factorization.

421275039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140425016.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 421275039 is about 20524.9857247210. The cubic root of 421275039 is about 749.6442988845.

The spelling of 421275039 in words is "four hundred twenty-one million, two hundred seventy-five thousand, thirty-nine".