142079189 has 4 divisors (see below), whose sum is σ = 162376224. Its totient is φ = 121782156.

The previous prime is 142079177. The next prime is 142079213. The reversal of 142079189 is 981970241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142079189 - 2⁴ = 142079173 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 (142079989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10148507 + ... + 10148520.

It is an arithmetic number, because the mean of its divisors is an integer number (40594056).

Almost surely, 2^142079189 is an apocalyptic number.

It is an amenable number.

142079189 is a deficient number, since it is larger than the sum of its proper divisors (20297035).

142079189 is an equidigital number, since it uses as much as digits as its factorization.

142079189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20297034.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 142079189 is about 11919.6975213300. The cubic root of 142079189 is about 521.8073071700.

The spelling of 142079189 in words is "one hundred forty-two million, seventy-nine thousand, one hundred eighty-nine".