142869687 has 8 divisors (see below), whose sum is σ = 193102704. Its totient is φ = 93941568.

The previous prime is 142869667. The next prime is 142869697. The reversal of 142869687 is 786968241.

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

It is not a de Polignac number, because 142869687 - 2⁸ = 142869431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142869647) 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, 325968 + ... + 326405.

It is an arithmetic number, because the mean of its divisors is an integer number (24137838).

Almost surely, 2^142869687 is an apocalyptic number.

142869687 is a deficient number, since it is larger than the sum of its proper divisors (50233017).

142869687 is an equidigital number, since it uses as much as digits as its factorization.

142869687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652449.

The product of its digits is 1161216, while the sum is 51.

The square root of 142869687 is about 11952.8108409696. The cubic root of 142869687 is about 522.7732590781.

The spelling of 142869687 in words is "one hundred forty-two million, eight hundred sixty-nine thousand, six hundred eighty-seven".