142785223 has 8 divisors (see below), whose sum is σ = 163442048. Its totient is φ = 122193144.

The previous prime is 142785221. The next prime is 142785259. The reversal of 142785223 is 322587241.

It is a happy number.

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 142785223 - 2¹ = 142785221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142785221) 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 7 ways as a sum of consecutive naturals, for example, 11361 + ... + 20362.

It is an arithmetic number, because the mean of its divisors is an integer number (20430256).

Almost surely, 2^142785223 is an apocalyptic number.

142785223 is a deficient number, since it is larger than the sum of its proper divisors (20656825).

142785223 is an equidigital number, since it uses as much as digits as its factorization.

142785223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32373.

The product of its digits is 26880, while the sum is 34.

The square root of 142785223 is about 11949.2770911047. The cubic root of 142785223 is about 522.6702182678.

The spelling of 142785223 in words is "one hundred forty-two million, seven hundred eighty-five thousand, two hundred twenty-three".