420141523 has 4 divisors (see below), whose sum is σ = 426412360. Its totient is φ = 413870688.

The previous prime is 420141521. The next prime is 420141541. The reversal of 420141523 is 325141024.

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 420141523 - 2¹ = 420141521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420141494 and 420141503.

It is not an unprimeable number, because it can be changed into a prime (420141521) 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, 3135318 + ... + 3135451.

It is an arithmetic number, because the mean of its divisors is an integer number (106603090).

Almost surely, 2^420141523 is an apocalyptic number.

420141523 is a deficient number, since it is larger than the sum of its proper divisors (6270837).

420141523 is an equidigital number, since it uses as much as digits as its factorization.

420141523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270836.

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

The square root of 420141523 is about 20497.3540487547. The cubic root of 420141523 is about 748.9713441716.

Adding to 420141523 its reverse (325141024), we get a palindrome (745282547).

The spelling of 420141523 in words is "four hundred twenty million, one hundred forty-one thousand, five hundred twenty-three".