143504225 has 36 divisors (see below), whose sum is σ = 193636044. Its totient is φ = 105123840.

The previous prime is 143504219. The next prime is 143504243. The reversal of 143504225 is 522405341.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 55696 + 143448529 = 236^2 + 11977^2 .

It is not a de Polignac number, because 143504225 - 2⁶ = 143504161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143504194 and 143504203.

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 35 ways as a sum of consecutive naturals, for example, 1479377 + ... + 1479473.

It is an arithmetic number, because the mean of its divisors is an integer number (5378779).

Almost surely, 2^143504225 is an apocalyptic number.

It is an amenable number.

143504225 is a deficient number, since it is larger than the sum of its proper divisors (50131819).

143504225 is an equidigital number, since it uses as much as digits as its factorization.

143504225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 143504225 is about 11979.3248975057. The cubic root of 143504225 is about 523.5460603078.

Adding to 143504225 its reverse (522405341), we get a palindrome (665909566).

The spelling of 143504225 in words is "one hundred forty-three million, five hundred four thousand, two hundred twenty-five".