142870170 has 32 divisors (see below), whose sum is σ = 344953728. Its totient is φ = 37869248.

The previous prime is 142870129. The next prime is 142870171. The reversal of 142870170 is 71078241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142870171) 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, 9249 + ... + 19268.

It is an arithmetic number, because the mean of its divisors is an integer number (10779804).

Almost surely, 2^142870170 is an apocalyptic number.

142870170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142870170 is an abundant number, since it is smaller than the sum of its proper divisors (202083558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142870170 is a wasteful number, since it uses less digits than its factorization.

142870170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28694.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 142870170 is about 11952.8310454051. The cubic root of 142870170 is about 522.7738481911.

The spelling of 142870170 in words is "one hundred forty-two million, eight hundred seventy thousand, one hundred seventy".