43142331 has 16 divisors (see below), whose sum is σ = 60710400. Its totient is φ = 27175968.

The previous prime is 43142317. The next prime is 43142347. The reversal of 43142331 is 13324134.

43142331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43142331 - 2¹¹ = 43140283 is a prime.

It is a super-2 number, since 2×43142331² = 3722521448227122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43142298 and 43142307.

It is not an unprimeable number, because it can be changed into a prime (43142531) 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 15 ways as a sum of consecutive naturals, for example, 28270 + ... + 29756.

It is an arithmetic number, because the mean of its divisors is an integer number (3794400).

Almost surely, 2^43142331 is an apocalyptic number.

43142331 is a deficient number, since it is larger than the sum of its proper divisors (17568069).

43142331 is a wasteful number, since it uses less digits than its factorization.

43142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018.

The product of its digits is 864, while the sum is 21.

The square root of 43142331 is about 6568.2821955211. The cubic root of 43142331 is about 350.7259246328.

Adding to 43142331 its reverse (13324134), we get a palindrome (56466465).

The spelling of 43142331 in words is "forty-three million, one hundred forty-two thousand, three hundred thirty-one".