420110549 has 2 divisors, whose sum is σ = 420110550. Its totient is φ = 420110548.

The previous prime is 420110533. The next prime is 420110567. The reversal of 420110549 is 945011024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267093649 + 153016900 = 16343^2 + 12370^2 .

It is a cyclic number.

It is not a de Polignac number, because 420110549 - 2⁴ = 420110533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420110519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210055274 + 210055275.

It is an arithmetic number, because the mean of its divisors is an integer number (210055275).

Almost surely, 2^420110549 is an apocalyptic number.

It is an amenable number.

420110549 is a deficient number, since it is larger than the sum of its proper divisors (1).

420110549 is an equidigital number, since it uses as much as digits as its factorization.

420110549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 420110549 is about 20496.5984738932. The cubic root of 420110549 is about 748.9529383034.

The spelling of 420110549 in words is "four hundred twenty million, one hundred ten thousand, five hundred forty-nine".