420145063 has 4 divisors (see below), whose sum is σ = 452463928. Its totient is φ = 387826200.

The previous prime is 420145039. The next prime is 420145097. The reversal of 420145063 is 360541024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420145063 - 2⁹ = 420144551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420143063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16159413 + ... + 16159438.

It is an arithmetic number, because the mean of its divisors is an integer number (113115982).

Almost surely, 2^420145063 is an apocalyptic number.

420145063 is a deficient number, since it is larger than the sum of its proper divisors (32318865).

420145063 is a wasteful number, since it uses less digits than its factorization.

420145063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32318864.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 420145063 is about 20497.4404011818. The cubic root of 420145063 is about 748.9734477097.

Adding to 420145063 its reverse (360541024), we get a palindrome (780686087).

The spelling of 420145063 in words is "four hundred twenty million, one hundred forty-five thousand, sixty-three".