142873017 has 16 divisors (see below), whose sum is σ = 224735232. Its totient is φ = 79007760.

The previous prime is 142873013. The next prime is 142873039. The reversal of 142873017 is 710378241.

It is a happy number.

It is not a de Polignac number, because 142873017 - 2² = 142873013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142873013) 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, 109083 + ... + 110384.

It is an arithmetic number, because the mean of its divisors is an integer number (14045952).

Almost surely, 2^142873017 is an apocalyptic number.

It is an amenable number.

142873017 is a deficient number, since it is larger than the sum of its proper divisors (81862215).

142873017 is a wasteful number, since it uses less digits than its factorization.

142873017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219508.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 142873017 is about 11952.9501379367. The cubic root of 142873017 is about 522.7773206381. Note that the first 3 decimals are identical.

The spelling of 142873017 in words is "one hundred forty-two million, eight hundred seventy-three thousand, seventeen".