142087275 has 108 divisors (see below), whose sum is σ = 297152856. Its totient is φ = 64627200.

The previous prime is 142087271. The next prime is 142087303. The reversal of 142087275 is 572780241.

It is not a de Polignac number, because 142087275 - 2² = 142087271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142087271) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 462672 + ... + 462978.

Almost surely, 2^142087275 is an apocalyptic number.

142087275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142087275 is an abundant number, since it is smaller than the sum of its proper divisors (155065581).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142087275 is a wasteful number, since it uses less digits than its factorization.

142087275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 142087275 is about 11920.0367029636. The cubic root of 142087275 is about 521.8172060015.

The spelling of 142087275 in words is "one hundred forty-two million, eighty-seven thousand, two hundred seventy-five".