143947000 has 32 divisors (see below), whose sum is σ = 336838320. Its totient is φ = 57578400.

The previous prime is 143946991. The next prime is 143947003. The reversal of 143947000 is 749341.

It is a self number, because there is not a number n which added to its sum of digits gives 143947000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143947003) 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 7 ways as a sum of consecutive naturals, for example, 70974 + ... + 72973.

Almost surely, 2^143947000 is an apocalyptic number.

143947000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143947000 is an abundant number, since it is smaller than the sum of its proper divisors (192891320).

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

143947000 is a wasteful number, since it uses less digits than its factorization.

143947000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143968 (or 143954 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 143947000 is about 11997.7914634319. The cubic root of 143947000 is about 524.0839657222.

The spelling of 143947000 in words is "one hundred forty-three million, nine hundred forty-seven thousand".