420145463 has 8 divisors (see below), whose sum is σ = 450492480. Its totient is φ = 390424320.

The previous prime is 420145421. The next prime is 420145477. The reversal of 420145463 is 364541024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420145463 - 2⁸ = 420145207 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 (420145403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155078 + ... + 157763.

It is an arithmetic number, because the mean of its divisors is an integer number (56311560).

Almost surely, 2^420145463 is an apocalyptic number.

420145463 is a deficient number, since it is larger than the sum of its proper divisors (30347017).

420145463 is a wasteful number, since it uses less digits than its factorization.

420145463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312937.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 420145463 is about 20497.4501584953. The cubic root of 420145463 is about 748.9736853969.

Adding to 420145463 its reverse (364541024), we get a palindrome (784686487).

The spelling of 420145463 in words is "four hundred twenty million, one hundred forty-five thousand, four hundred sixty-three".