142851870 has 64 divisors (see below), whose sum is σ = 435363840. Its totient is φ = 32651424.

The previous prime is 142851851. The next prime is 142851871. The reversal of 142851870 is 78158241.

142851870 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142851871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35902 + ... + 39681.

It is an arithmetic number, because the mean of its divisors is an integer number (6802560).

Almost surely, 2^142851870 is an apocalyptic number.

142851870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142851870 is an abundant number, since it is smaller than the sum of its proper divisors (292511970).

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

142851870 is a wasteful number, since it uses less digits than its factorization.

142851870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75606 (or 75600 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 142851870 is about 11952.0655118686. The cubic root of 142851870 is about 522.7515268302.

The spelling of 142851870 in words is "one hundred forty-two million, eight hundred fifty-one thousand, eight hundred seventy".