142520323 has 8 divisors (see below), whose sum is σ = 157798080. Its totient is φ = 127629480.

The previous prime is 142520281. The next prime is 142520377. The reversal of 142520323 is 323025241.

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

It is a de Polignac number, because none of the positive numbers 2^k-142520323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142520294 and 142520303.

It is not an unprimeable number, because it can be changed into a prime (142520383) 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, 95953 + ... + 97426.

It is an arithmetic number, because the mean of its divisors is an integer number (19724760).

Almost surely, 2^142520323 is an apocalyptic number.

142520323 is a deficient number, since it is larger than the sum of its proper divisors (15277757).

142520323 is a wasteful number, since it uses less digits than its factorization.

142520323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193457.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 142520323 is about 11938.1875927630. The cubic root of 142520323 is about 522.3467929893.

Adding to 142520323 its reverse (323025241), we get a palindrome (465545564).

The spelling of 142520323 in words is "one hundred forty-two million, five hundred twenty thousand, three hundred twenty-three".