142642167 has 4 divisors (see below), whose sum is σ = 190189560. Its totient is φ = 95094776.

The previous prime is 142642153. The next prime is 142642183. The reversal of 142642167 is 761246241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142642167 - 2⁴ = 142642151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142642127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23773692 + ... + 23773697.

It is an arithmetic number, because the mean of its divisors is an integer number (47547390).

Almost surely, 2^142642167 is an apocalyptic number.

142642167 is a deficient number, since it is larger than the sum of its proper divisors (47547393).

142642167 is an equidigital number, since it uses as much as digits as its factorization.

142642167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47547392.

The product of its digits is 16128, while the sum is 33.

The square root of 142642167 is about 11943.2896222105. The cubic root of 142642167 is about 522.4956061381.

The spelling of 142642167 in words is "one hundred forty-two million, six hundred forty-two thousand, one hundred sixty-seven".