142001085 has 16 divisors (see below), whose sum is σ = 240566976. Its totient is φ = 71278848.

The previous prime is 142001063. The next prime is 142001087. The reversal of 142001085 is 580100241.

It is not a de Polignac number, because 142001085 - 2⁶ = 142001021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001087) 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, 278179 + ... + 278688.

It is an arithmetic number, because the mean of its divisors is an integer number (15035436).

Almost surely, 2^142001085 is an apocalyptic number.

142001085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142001085 is a deficient number, since it is larger than the sum of its proper divisors (98565891).

142001085 is a wasteful number, since it uses less digits than its factorization.

142001085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556892.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 142001085 is about 11916.4208133147. The cubic root of 142001085 is about 521.7116733935.

The spelling of 142001085 in words is "one hundred forty-two million, one thousand, eighty-five".