142887867 has 8 divisors (see below), whose sum is σ = 190777920. Its totient is φ = 95128200.

The previous prime is 142887863. The next prime is 142887889. The reversal of 142887867 is 768788241.

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

It is not a de Polignac number, because 142887867 - 2² = 142887863 is a prime.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (142887863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30009 + ... + 34442.

It is an arithmetic number, because the mean of its divisors is an integer number (23847240).

Almost surely, 2^142887867 is an apocalyptic number.

142887867 is a deficient number, since it is larger than the sum of its proper divisors (47890053).

142887867 is an equidigital number, since it uses as much as digits as its factorization.

142887867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65193.

The product of its digits is 1204224, while the sum is 51.

The square root of 142887867 is about 11953.5713073541. The cubic root of 142887867 is about 522.7954322322.

It can be divided in two parts, 14288 and 7867, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 142887867 in words is "one hundred forty-two million, eight hundred eighty-seven thousand, eight hundred sixty-seven".