120143000 has 64 divisors (see below), whose sum is σ = 282765600. Its totient is φ = 47779200.

The previous prime is 120142991. The next prime is 120143003. The reversal of 120143000 is 341021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120143003) 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 15 ways as a sum of consecutive naturals, for example, 316811 + ... + 317189.

Almost surely, 2^120143000 is an apocalyptic number.

120143000 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 120143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141382800).

120143000 is an abundant number, since it is smaller than the sum of its proper divisors (162622600).

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

120143000 is a wasteful number, since it uses less digits than its factorization.

120143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 120143000 is about 10960.9762338945. The cubic root of 120143000 is about 493.4382639392.

Adding to 120143000 its reverse (341021), we get a palindrome (120484021).

The spelling of 120143000 in words is "one hundred twenty million, one hundred forty-three thousand".