142855680 has 320 divisors, whose sum is σ = 530323200. Its totient is φ = 32440320.

The previous prime is 142855679. The next prime is 142855693. The reversal of 142855680 is 86558241.

It is a tau number, because it is divible by the number of its divisors (320).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1605076 + ... + 1605164.

It is an arithmetic number, because the mean of its divisors is an integer number (1657260).

Almost surely, 2^142855680 is an apocalyptic number.

142855680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142855680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265161600).

142855680 is an abundant number, since it is smaller than the sum of its proper divisors (387467520).

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

142855680 is a wasteful number, since it uses less digits than its factorization.

142855680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 142855680 is about 11952.2248974825. The cubic root of 142855680 is about 522.7561742215.

The spelling of 142855680 in words is "one hundred forty-two million, eight hundred fifty-five thousand, six hundred eighty".