143403125 has 24 divisors (see below), whose sum is σ = 181316520. Its totient is φ = 113400000.

The previous prime is 143403121. The next prime is 143403163. The reversal of 143403125 is 521304341.

It can be written as a sum of positive squares in 12 ways, for example, as 136632721 + 6770404 = 11689^2 + 2602^2 .

It is not a de Polignac number, because 143403125 - 2² = 143403121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143403125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143403121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340415 + ... + 340835.

It is an arithmetic number, because the mean of its divisors is an integer number (7554855).

Almost surely, 2^143403125 is an apocalyptic number.

It is an amenable number.

143403125 is a deficient number, since it is larger than the sum of its proper divisors (37913395).

143403125 is an frugal number, since it uses more digits than its factorization.

143403125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 143403125 is about 11975.1043836787. The cubic root of 143403125 is about 523.4230838088.

Adding to 143403125 its reverse (521304341), we get a palindrome (664707466).

The spelling of 143403125 in words is "one hundred forty-three million, four hundred three thousand, one hundred twenty-five".