142622143 has 8 divisors (see below), whose sum is σ = 145154048. Its totient is φ = 140112504.

The previous prime is 142622141. The next prime is 142622147. The reversal of 142622143 is 341226241.

It is a happy number.

142622143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142622143 - 2¹ = 142622141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142622141) 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, 7630 + ... + 18532.

It is an arithmetic number, because the mean of its divisors is an integer number (18144256).

Almost surely, 2^142622143 is an apocalyptic number.

142622143 is a deficient number, since it is larger than the sum of its proper divisors (2531905).

142622143 is a wasteful number, since it uses less digits than its factorization.

142622143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11133.

The product of its digits is 2304, while the sum is 25.

The square root of 142622143 is about 11942.4512977864. The cubic root of 142622143 is about 522.4711558141.

Adding to 142622143 its reverse (341226241), we get a palindrome (483848384).

The spelling of 142622143 in words is "one hundred forty-two million, six hundred twenty-two thousand, one hundred forty-three".