142815873 has 8 divisors (see below), whose sum is σ = 191590048. Its totient is φ = 94626144.

The previous prime is 142815851. The next prime is 142815887. The reversal of 142815873 is 378518241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142815873 - 2¹² = 142811777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142815373) 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, 145540 + ... + 146517.

It is an arithmetic number, because the mean of its divisors is an integer number (23948756).

Almost surely, 2^142815873 is an apocalyptic number.

It is an amenable number.

142815873 is a deficient number, since it is larger than the sum of its proper divisors (48774175).

142815873 is a wasteful number, since it uses less digits than its factorization.

142815873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292223.

The product of its digits is 53760, while the sum is 39.

The square root of 142815873 is about 11950.5595266498. The cubic root of 142815873 is about 522.7076140518.

The spelling of 142815873 in words is "one hundred forty-two million, eight hundred fifteen thousand, eight hundred seventy-three".