143120 has 20 divisors (see below), whose sum is σ = 332940. Its totient is φ = 57216.
The previous prime is 143113. The next prime is 143137. The reversal of 143120 is 21341.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 99856 + 43264 = 316^2 + 208^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is an unprimeable number.
143120 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815 + ... + 974.
It is an arithmetic number, because the mean of its divisors is an integer number (16647).
2143120 is an apocalyptic number.
143120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
143120 is an abundant number, since it is smaller than the sum of its proper divisors (189820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143120 is a wasteful number, since it uses less digits than its factorization.
143120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1802 (or 1796 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 143120 is about 378.3120405168. The cubic root of 143120 is about 52.3078387007.
Adding to 143120 its reverse (21341), we get a palindrome (164461).
The spelling of 143120 in words is "one hundred forty-three thousand, one hundred twenty", and thus it is an iban number.
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