142987875 has 16 divisors (see below), whose sum is σ = 237932448. Its totient is φ = 76260000.

The previous prime is 142987847. The next prime is 142987891. The reversal of 142987875 is 578789241.

It is not a de Polignac number, because 142987875 - 2⁶ = 142987811 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190276 + ... + 191025.

It is an arithmetic number, because the mean of its divisors is an integer number (14870778).

Almost surely, 2^142987875 is an apocalyptic number.

142987875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142987875 is a deficient number, since it is larger than the sum of its proper divisors (94944573).

142987875 is an equidigital number, since it uses as much as digits as its factorization.

142987875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381319 (or 381309 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 142987875 is about 11957.7537606358. The cubic root of 142987875 is about 522.9173729155.

The spelling of 142987875 in words is "one hundred forty-two million, nine hundred eighty-seven thousand, eight hundred seventy-five".