143945853 has 16 divisors (see below), whose sum is σ = 195281856. Its totient is φ = 94296960.

The previous prime is 143945849. The next prime is 143945929. The reversal of 143945853 is 358549341.

It is not a de Polignac number, because 143945853 - 2² = 143945849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143945453) 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, 66163 + ... + 68303.

It is an arithmetic number, because the mean of its divisors is an integer number (12205116).

Almost surely, 2^143945853 is an apocalyptic number.

It is an amenable number.

143945853 is a deficient number, since it is larger than the sum of its proper divisors (51336003).

143945853 is a wasteful number, since it uses less digits than its factorization.

143945853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524.

The product of its digits is 259200, while the sum is 42.

The square root of 143945853 is about 11997.7436628726. The cubic root of 143945853 is about 524.0825737147.

The spelling of 143945853 in words is "one hundred forty-three million, nine hundred forty-five thousand, eight hundred fifty-three".