43142323 has 4 divisors (see below), whose sum is σ = 49305520. Its totient is φ = 36979128.

The previous prime is 43142317. The next prime is 43142347. The reversal of 43142323 is 32324134.

It is a happy number.

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 43142323 - 2⁹ = 43141811 is a prime.

It is a super-2 number, since 2×43142323² = 3722520067672658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43142294 and 43142303.

It is not an unprimeable number, because it can be changed into a prime (43142303) 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, 3081588 + ... + 3081601.

It is an arithmetic number, because the mean of its divisors is an integer number (12326380).

Almost surely, 2^43142323 is an apocalyptic number.

43142323 is a deficient number, since it is larger than the sum of its proper divisors (6163197).

43142323 is an equidigital number, since it uses as much as digits as its factorization.

43142323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163196.

The product of its digits is 1728, while the sum is 22.

The square root of 43142323 is about 6568.2815865339. The cubic root of 43142323 is about 350.7259029541.

Adding to 43142323 its reverse (32324134), we get a palindrome (75466457).

The spelling of 43142323 in words is "forty-three million, one hundred forty-two thousand, three hundred twenty-three".