142875855 has 24 divisors (see below), whose sum is σ = 248554800. Its totient is φ = 75922560.

The previous prime is 142875829. The next prime is 142875893. The reversal of 142875855 is 558578241.

It is not a de Polignac number, because 142875855 - 2⁵ = 142875823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 142875855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6996 + ... + 18294.

It is an arithmetic number, because the mean of its divisors is an integer number (10356450).

Almost surely, 2^142875855 is an apocalyptic number.

142875855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142875855 is a deficient number, since it is larger than the sum of its proper divisors (105678945).

142875855 is a wasteful number, since it uses less digits than its factorization.

142875855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11591 (or 11588 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The square root of 142875855 is about 11953.0688528093. The cubic root of 142875855 is about 522.7807820620.

The spelling of 142875855 in words is "one hundred forty-two million, eight hundred seventy-five thousand, eight hundred fifty-five".