142540323 has 4 divisors (see below), whose sum is σ = 190053768. Its totient is φ = 95026880.

The previous prime is 142540301. The next prime is 142540327. The reversal of 142540323 is 323045241.

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 142540323 - 2⁶ = 142540259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142540293 and 142540302.

It is not an unprimeable number, because it can be changed into a prime (142540327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23756718 + ... + 23756723.

It is an arithmetic number, because the mean of its divisors is an integer number (47513442).

Almost surely, 2^142540323 is an apocalyptic number.

142540323 is a deficient number, since it is larger than the sum of its proper divisors (47513445).

142540323 is an equidigital number, since it uses as much as digits as its factorization.

142540323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47513444.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 142540323 is about 11939.0252114651. The cubic root of 142540323 is about 522.3712256387.

Adding to 142540323 its reverse (323045241), we get a palindrome (465585564).

The spelling of 142540323 in words is "one hundred forty-two million, five hundred forty thousand, three hundred twenty-three".