143946693 has 32 divisors (see below), whose sum is σ = 233470080. Its totient is φ = 86929920.

The previous prime is 143946659. The next prime is 143946697. The reversal of 143946693 is 396649341.

It is not a de Polignac number, because 143946693 - 2⁶ = 143946629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143946697) 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 31 ways as a sum of consecutive naturals, for example, 104155 + ... + 105527.

It is an arithmetic number, because the mean of its divisors is an integer number (7295940).

Almost surely, 2^143946693 is an apocalyptic number.

It is an amenable number.

143946693 is a deficient number, since it is larger than the sum of its proper divisors (89523387).

143946693 is a wasteful number, since it uses less digits than its factorization.

143946693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746 (or 1740 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 143946693 is about 11997.7786694038. The cubic root of 143946693 is about 524.0835931455.

The spelling of 143946693 in words is "one hundred forty-three million, nine hundred forty-six thousand, six hundred ninety-three".