421907141 has 4 divisors (see below), whose sum is σ = 444112800. Its totient is φ = 399701484.

The previous prime is 421907131. The next prime is 421907149. The reversal of 421907141 is 141709124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421907141 - 2¹⁰ = 421906117 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 (421907149) 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, 11102801 + ... + 11102838.

It is an arithmetic number, because the mean of its divisors is an integer number (111028200).

Almost surely, 2^421907141 is an apocalyptic number.

It is an amenable number.

421907141 is a deficient number, since it is larger than the sum of its proper divisors (22205659).

421907141 is a wasteful number, since it uses less digits than its factorization.

421907141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22205658.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 421907141 is about 20540.3783071296. The cubic root of 421907141 is about 750.0190460348.

The spelling of 421907141 in words is "four hundred twenty-one million, nine hundred seven thousand, one hundred forty-one".