420343141 has 2 divisors, whose sum is σ = 420343142. Its totient is φ = 420343140.

The previous prime is 420343127. The next prime is 420343201. The reversal of 420343141 is 141343024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420045025 + 298116 = 20495^2 + 546^2 .

It is a cyclic number.

It is not a de Polignac number, because 420343141 - 2⁵ = 420343109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420383141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210171570 + 210171571.

It is an arithmetic number, because the mean of its divisors is an integer number (210171571).

Almost surely, 2^420343141 is an apocalyptic number.

It is an amenable number.

420343141 is a deficient number, since it is larger than the sum of its proper divisors (1).

420343141 is an equidigital number, since it uses as much as digits as its factorization.

420343141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 420343141 is about 20502.2716058489. The cubic root of 420343141 is about 749.0911307575.

Adding to 420343141 its reverse (141343024), we get a palindrome (561686165).

The spelling of 420343141 in words is "four hundred twenty million, three hundred forty-three thousand, one hundred forty-one".