423016541 has 2 divisors, whose sum is σ = 423016542. Its totient is φ = 423016540.

The previous prime is 423016537. The next prime is 423016547. The reversal of 423016541 is 145610324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344250916 + 78765625 = 18554^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 423016541 - 2² = 423016537 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423016541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423016547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211508270 + 211508271.

It is an arithmetic number, because the mean of its divisors is an integer number (211508271).

Almost surely, 2^423016541 is an apocalyptic number.

It is an amenable number.

423016541 is a deficient number, since it is larger than the sum of its proper divisors (1).

423016541 is an equidigital number, since it uses as much as digits as its factorization.

423016541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 423016541 is about 20567.3659227428. The cubic root of 423016541 is about 750.6758595097.

Adding to 423016541 its reverse (145610324), we get a palindrome (568626865).

The spelling of 423016541 in words is "four hundred twenty-three million, sixteen thousand, five hundred forty-one".