142870172 has 24 divisors (see below), whose sum is σ = 258775440. Its totient is φ = 68964480.

The previous prime is 142870171. The next prime is 142870207. The reversal of 142870172 is 271078241.

It is a happy number.

142870172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 15704 + ... + 23072.

It is an arithmetic number, because the mean of its divisors is an integer number (10782310).

Almost surely, 2^142870172 is an apocalyptic number.

It is an amenable number.

142870172 is a deficient number, since it is larger than the sum of its proper divisors (115905268).

142870172 is a wasteful number, since it uses less digits than its factorization.

142870172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7541 (or 7539 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 142870172 is about 11952.8311290673. The cubic root of 142870172 is about 522.7738506305.

The spelling of 142870172 in words is "one hundred forty-two million, eight hundred seventy thousand, one hundred seventy-two".