431145162 has 48 divisors (see below), whose sum is σ = 1072723392. Its totient is φ = 122592960.

The previous prime is 431145161. The next prime is 431145167. The reversal of 431145162 is 261541134.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (431145161) 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 23 ways as a sum of consecutive naturals, for example, 18478 + ... + 34694.

It is an arithmetic number, because the mean of its divisors is an integer number (22348404).

Almost surely, 2^431145162 is an apocalyptic number.

431145162 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 431145162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536361696).

431145162 is an abundant number, since it is smaller than the sum of its proper divisors (641578230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431145162 is a wasteful number, since it uses less digits than its factorization.

431145162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16443 (or 16440 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 431145162 is about 20764.0353014533. The cubic root of 431145162 is about 755.4536764289.

Adding to 431145162 its reverse (261541134), we get a palindrome (692686296).

The spelling of 431145162 in words is "four hundred thirty-one million, one hundred forty-five thousand, one hundred sixty-two".