142404323 has 8 divisors (see below), whose sum is σ = 143288880. Its totient is φ = 141523200.

The previous prime is 142404307. The next prime is 142404329. The reversal of 142404323 is 323404241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142404323 - 2⁴ = 142404307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142404329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151511 + ... + 152447.

It is an arithmetic number, because the mean of its divisors is an integer number (17911110).

Almost surely, 2^142404323 is an apocalyptic number.

142404323 is a deficient number, since it is larger than the sum of its proper divisors (884557).

142404323 is an equidigital number, since it uses as much as digits as its factorization.

142404323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 142404323 is about 11933.3282448779. The cubic root of 142404323 is about 522.2050385289.

Adding to 142404323 its reverse (323404241), we get a palindrome (465808564).

The spelling of 142404323 in words is "one hundred forty-two million, four hundred four thousand, three hundred twenty-three".