143281125 has 96 divisors (see below), whose sum is σ = 283806432. Its totient is φ = 69120000.

The previous prime is 143281123. The next prime is 143281129. The reversal of 143281125 is 521182341.

143281125 = 2335² + 2336² + ... + 2360².

It can be written as a sum of positive squares in 16 ways, for example, as 91527489 + 51753636 = 9567^2 + 7194^2 .

It is not a de Polignac number, because 143281125 - 2¹ = 143281123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143281123) 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 95 ways as a sum of consecutive naturals, for example, 1418575 + ... + 1418675.

It is an arithmetic number, because the mean of its divisors is an integer number (2956317).

Almost surely, 2^143281125 is an apocalyptic number.

143281125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143281125 is a deficient number, since it is larger than the sum of its proper divisors (140525307).

143281125 is a wasteful number, since it uses less digits than its factorization.

143281125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 219 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 143281125 is about 11970.0093984926. The cubic root of 143281125 is about 523.2746078865.

The spelling of 143281125 in words is "one hundred forty-three million, two hundred eighty-one thousand, one hundred twenty-five".