142140323 has 12 divisors (see below), whose sum is σ = 154330488. Its totient is φ = 130852800.

The previous prime is 142140319. The next prime is 142140331. The reversal of 142140323 is 323041241.

142140323 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 142140323 - 2² = 142140319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142140295 and 142140304.

It is not an unprimeable number, because it can be changed into a prime (142140353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78023 + ... + 79823.

It is an arithmetic number, because the mean of its divisors is an integer number (12860874).

Almost surely, 2^142140323 is an apocalyptic number.

142140323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142140323 is a deficient number, since it is larger than the sum of its proper divisors (12190165).

142140323 is a wasteful number, since it uses less digits than its factorization.

142140323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142140323 is about 11922.2616562463. The cubic root of 142140323 is about 521.8821377249.

Adding to 142140323 its reverse (323041241), we get a palindrome (465181564).

The spelling of 142140323 in words is "one hundred forty-two million, one hundred forty thousand, three hundred twenty-three".