142847100 has 216 divisors, whose sum is σ = 500467968. Its totient is φ = 33782400.

The previous prime is 142847099. The next prime is 142847123. The reversal of 142847100 is 1748241.

It is a super-3 number, since 3×142847100³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 465147 + ... + 465453.

Almost surely, 2^142847100 is an apocalyptic number.

142847100 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 142847100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250233984).

142847100 is an abundant number, since it is smaller than the sum of its proper divisors (357620868).

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

142847100 is a wasteful number, since it uses less digits than its factorization.

142847100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 142847100 is about 11951.8659631038. The cubic root of 142847100 is about 522.7457083261.

The spelling of 142847100 in words is "one hundred forty-two million, eight hundred forty-seven thousand, one hundred".