423541 has 2 divisors, whose sum is σ = 423542. Its totient is φ = 423540.

The previous prime is 423509. The next prime is 423547. The reversal of 423541 is 145324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271441 + 152100 = 521^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 423541 - 2⁵ = 423509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211770 + 211771.

It is an arithmetic number, because the mean of its divisors is an integer number (211771).

2⁴²³⁵⁴¹ is an apocalyptic number.

It is an amenable number.

423541 is a deficient number, since it is larger than the sum of its proper divisors (1).

423541 is an equidigital number, since it uses as much as digits as its factorization.

423541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 19.

The square root of 423541 is about 650.8002765826. The cubic root of 423541 is about 75.0985962528.

Adding to 423541 its reverse (145324), we get a palindrome (568865).

The spelling of 423541 in words is "four hundred twenty-three thousand, five hundred forty-one".