421186107 has 4 divisors (see below), whose sum is σ = 561581480. Its totient is φ = 280790736.

The previous prime is 421186093. The next prime is 421186127. The reversal of 421186107 is 701681124.

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

It is not a de Polignac number, because 421186107 - 2⁶ = 421186043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421186127) 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, 70197682 + ... + 70197687.

It is an arithmetic number, because the mean of its divisors is an integer number (140395370).

Almost surely, 2^421186107 is an apocalyptic number.

421186107 is a deficient number, since it is larger than the sum of its proper divisors (140395373).

421186107 is a wasteful number, since it uses less digits than its factorization.

421186107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140395372.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 421186107 is about 20522.8191776861. The cubic root of 421186107 is about 749.5915447039.

The spelling of 421186107 in words is "four hundred twenty-one million, one hundred eighty-six thousand, one hundred seven".