142320133 has 8 divisors (see below), whose sum is σ = 143439200. Its totient is φ = 141205680.

The previous prime is 142320097. The next prime is 142320149. The reversal of 142320133 is 331023241.

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 142320133 - 2¹³ = 142311941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142320133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142320173) 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, 82918 + ... + 84616.

It is an arithmetic number, because the mean of its divisors is an integer number (17929900).

Almost surely, 2^142320133 is an apocalyptic number.

It is an amenable number.

142320133 is a deficient number, since it is larger than the sum of its proper divisors (1119067).

142320133 is a wasteful number, since it uses less digits than its factorization.

142320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 142320133 is about 11929.8002078828. The cubic root of 142320133 is about 522.1021083460.

Adding to 142320133 its reverse (331023241), we get a palindrome (473343374).

The spelling of 142320133 in words is "one hundred forty-two million, three hundred twenty thousand, one hundred thirty-three".