142875547 has 4 divisors (see below), whose sum is σ = 147802320. Its totient is φ = 137948776.

The previous prime is 142875511. The next prime is 142875571. The reversal of 142875547 is 745578241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142875547 - 2⁷ = 142875419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142875587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2463343 + ... + 2463400.

It is an arithmetic number, because the mean of its divisors is an integer number (36950580).

Almost surely, 2^142875547 is an apocalyptic number.

142875547 is a deficient number, since it is larger than the sum of its proper divisors (4926773).

142875547 is an equidigital number, since it uses as much as digits as its factorization.

142875547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926772.

The product of its digits is 313600, while the sum is 43.

The square root of 142875547 is about 11953.0559690817. The cubic root of 142875547 is about 522.7804064058.

The spelling of 142875547 in words is "one hundred forty-two million, eight hundred seventy-five thousand, five hundred forty-seven".