420432141 has 4 divisors (see below), whose sum is σ = 560576192. Its totient is φ = 280288092.

The previous prime is 420432139. The next prime is 420432143. The reversal of 420432141 is 141234024.

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 an interprime number because it is at equal distance from previous prime (420432139) and next prime (420432143).

It is not a de Polignac number, because 420432141 - 2¹ = 420432139 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 (420432143) 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 3 ways as a sum of consecutive naturals, for example, 70072021 + ... + 70072026.

It is an arithmetic number, because the mean of its divisors is an integer number (140144048).

Almost surely, 2^420432141 is an apocalyptic number.

It is an amenable number.

420432141 is a deficient number, since it is larger than the sum of its proper divisors (140144051).

420432141 is a wasteful number, since it uses less digits than its factorization.

420432141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140144050.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 420432141 is about 20504.4419821657. The cubic root of 420432141 is about 749.1439958253.

Adding to 420432141 its reverse (141234024), we get a palindrome (561666165).

The spelling of 420432141 in words is "four hundred twenty million, four hundred thirty-two thousand, one hundred forty-one".