423577541 has 2 divisors, whose sum is σ = 423577542. Its totient is φ = 423577540.

The previous prime is 423577529. The next prime is 423577571. The reversal of 423577541 is 145775324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351412516 + 72165025 = 18746^2 + 8495^2 .

It is a cyclic number.

It is not a de Polignac number, because 423577541 - 2¹⁸ = 423315397 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 423577495 and 423577504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423577571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211788770 + 211788771.

It is an arithmetic number, because the mean of its divisors is an integer number (211788771).

Almost surely, 2^423577541 is an apocalyptic number.

It is an amenable number.

423577541 is a deficient number, since it is larger than the sum of its proper divisors (1).

423577541 is an equidigital number, since it uses as much as digits as its factorization.

423577541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 38.

The square root of 423577541 is about 20580.9995141150. Note that the first 3 decimals coincide. The cubic root of 423577541 is about 751.0075590122.

The spelling of 423577541 in words is "four hundred twenty-three million, five hundred seventy-seven thousand, five hundred forty-one".