421630141 has 8 divisors (see below), whose sum is σ = 446713920. Its totient is φ = 396577728.

The previous prime is 421630081. The next prime is 421630151. The reversal of 421630141 is 141036124.

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 421630141 - 2¹¹ = 421628093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421630151) 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, 23440 + ... + 37318.

It is an arithmetic number, because the mean of its divisors is an integer number (55839240).

Almost surely, 2^421630141 is an apocalyptic number.

It is an amenable number.

421630141 is a deficient number, since it is larger than the sum of its proper divisors (25083779).

421630141 is a wasteful number, since it uses less digits than its factorization.

421630141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15683.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 421630141 is about 20533.6343836156. The cubic root of 421630141 is about 749.8548702887.

Adding to 421630141 its reverse (141036124), we get a palindrome (562666265).

The spelling of 421630141 in words is "four hundred twenty-one million, six hundred thirty thousand, one hundred forty-one".