423143545 has 16 divisors (see below), whose sum is σ = 560613312. Its totient is φ = 304029760.

The previous prime is 423143537. The next prime is 423143579. The reversal of 423143545 is 545341324.

It is not a de Polignac number, because 423143545 - 2³ = 423143537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41782 + ... + 50911.

It is an arithmetic number, because the mean of its divisors is an integer number (35038332).

Almost surely, 2^423143545 is an apocalyptic number.

It is an amenable number.

423143545 is a deficient number, since it is larger than the sum of its proper divisors (137469767).

423143545 is a wasteful number, since it uses less digits than its factorization.

423143545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92792.

The product of its digits is 28800, while the sum is 31.

The square root of 423143545 is about 20570.4532035636. The cubic root of 423143545 is about 750.7509781618.

Adding to 423143545 its reverse (545341324), we get a palindrome (968484869).

The spelling of 423143545 in words is "four hundred twenty-three million, one hundred forty-three thousand, five hundred forty-five".