142847860 has 24 divisors (see below), whose sum is σ = 304092936. Its totient is φ = 56355840.

The previous prime is 142847857. The next prime is 142847867. The reversal of 142847860 is 68748241.

142847860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22638564 + 120209296 = 4758^2 + 10964^2 .

It is a super-3 number, since 3×142847860³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142847867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47461 + ... + 50380.

It is an arithmetic number, because the mean of its divisors is an integer number (12670539).

Almost surely, 2^142847860 is an apocalyptic number.

142847860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142847860 is an abundant number, since it is smaller than the sum of its proper divisors (161245076).

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

142847860 is a wasteful number, since it uses less digits than its factorization.

142847860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97923 (or 97921 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 142847860 is about 11951.8977572601. The cubic root of 142847860 is about 522.7466353921.

The spelling of 142847860 in words is "one hundred forty-two million, eight hundred forty-seven thousand, eight hundred sixty".