142645143 has 8 divisors (see below), whose sum is σ = 190256368. Its totient is φ = 95065344.

The previous prime is 142645127. The next prime is 142645157. The reversal of 142645143 is 341546241.

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

It is not a de Polignac number, because 142645143 - 2⁴ = 142645127 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 142645143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142645123) 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, 6471 + ... + 18087.

It is an arithmetic number, because the mean of its divisors is an integer number (23782046).

Almost surely, 2^142645143 is an apocalyptic number.

142645143 is a deficient number, since it is larger than the sum of its proper divisors (47611225).

142645143 is a wasteful number, since it uses less digits than its factorization.

142645143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713.

The product of its digits is 11520, while the sum is 30.

The square root of 142645143 is about 11943.4142103504. The cubic root of 142645143 is about 522.4992397904.

The spelling of 142645143 in words is "one hundred forty-two million, six hundred forty-five thousand, one hundred forty-three".