142867387 has 8 divisors (see below), whose sum is σ = 154158704. Its totient is φ = 131619168.

The previous prime is 142867367. The next prime is 142867391. The reversal of 142867387 is 783768241.

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

It is a cyclic number.

It is not a de Polignac number, because 142867387 - 2⁷ = 142867259 is a prime.

It is a super-2 number, since 2×142867387² = 40822180536415538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142867367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3708 + ... + 17305.

It is an arithmetic number, because the mean of its divisors is an integer number (19269838).

Almost surely, 2^142867387 is an apocalyptic number.

142867387 is a deficient number, since it is larger than the sum of its proper divisors (11291317).

142867387 is a wasteful number, since it uses less digits than its factorization.

142867387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21549.

The product of its digits is 451584, while the sum is 46.

The square root of 142867387 is about 11952.7146289033. The cubic root of 142867387 is about 522.7704537595.

The spelling of 142867387 in words is "one hundred forty-two million, eight hundred sixty-seven thousand, three hundred eighty-seven".