431148542 has 16 divisors (see below), whose sum is σ = 705834864. Its totient is φ = 195888000.

The previous prime is 431148511. The next prime is 431148569. The reversal of 431148542 is 245841134.

It is a junction number, because it is equal to n+sod(n) for n = 431148499 and 431148508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90992 + ... + 95612.

It is an arithmetic number, because the mean of its divisors is an integer number (44114679).

Almost surely, 2^431148542 is an apocalyptic number.

431148542 is a deficient number, since it is larger than the sum of its proper divisors (274686322).

431148542 is a wasteful number, since it uses less digits than its factorization.

431148542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8875.

The product of its digits is 15360, while the sum is 32.

The square root of 431148542 is about 20764.1166920242. The cubic root of 431148542 is about 755.4556505720.

Adding to 431148542 its reverse (245841134), we get a palindrome (676989676).

The spelling of 431148542 in words is "four hundred thirty-one million, one hundred forty-eight thousand, five hundred forty-two".