420600145 has 32 divisors (see below), whose sum is σ = 614117376. Its totient is φ = 269952000.

The previous prime is 420600143. The next prime is 420600151. The reversal of 420600145 is 541006024.

It is not a de Polignac number, because 420600145 - 2¹ = 420600143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420600143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111795 + ... + 115495.

It is an arithmetic number, because the mean of its divisors is an integer number (19191168).

Almost surely, 2^420600145 is an apocalyptic number.

It is an amenable number.

420600145 is a deficient number, since it is larger than the sum of its proper divisors (193517231).

420600145 is a wasteful number, since it uses less digits than its factorization.

420600145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420600145 is about 20508.5383438216. The cubic root of 420600145 is about 749.2437681111.

Adding to 420600145 its reverse (541006024), we get a palindrome (961606169).

The spelling of 420600145 in words is "four hundred twenty million, six hundred thousand, one hundred forty-five".