142318189 has 16 divisors (see below), whose sum is σ = 162792000. Its totient is φ = 123330816.

The previous prime is 142318177. The next prime is 142318199. The reversal of 142318189 is 981813241.

It is a cyclic number.

It is not a de Polignac number, because 142318189 - 2¹³ = 142309997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142318129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25362 + ... + 30460.

It is an arithmetic number, because the mean of its divisors is an integer number (10174500).

Almost surely, 2^142318189 is an apocalyptic number.

142318189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

142318189 is a deficient number, since it is larger than the sum of its proper divisors (20473811).

142318189 is a wasteful number, since it uses less digits than its factorization.

142318189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244.

The product of its digits is 13824, while the sum is 37.

The square root of 142318189 is about 11929.7187309676. The cubic root of 142318189 is about 522.0997311440.

The spelling of 142318189 in words is "one hundred forty-two million, three hundred eighteen thousand, one hundred eighty-nine".