142000868 has 12 divisors (see below), whose sum is σ = 249048492. Its totient is φ = 70844160.

The previous prime is 142000861. The next prime is 142000883. The reversal of 142000868 is 868000241.

It can be written as a sum of positive squares in 2 ways, for example, as 81036004 + 60964864 = 9002^2 + 7808^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142000868.

It is not an unprimeable number, because it can be changed into a prime (142000861) 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 3 ways as a sum of consecutive naturals, for example, 37013 + ... + 40668.

It is an arithmetic number, because the mean of its divisors is an integer number (20754041).

Almost surely, 2^142000868 is an apocalyptic number.

It is an amenable number.

142000868 is a deficient number, since it is larger than the sum of its proper divisors (107047624).

142000868 is a wasteful number, since it uses less digits than its factorization.

142000868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78142 (or 78140 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 142000868 is about 11916.4117082283. The cubic root of 142000868 is about 521.7114076409.

The spelling of 142000868 in words is "one hundred forty-two million, eight hundred sixty-eight", and thus it is an aban number.