143244993 has 8 divisors (see below), whose sum is σ = 191360608. Its totient is φ = 95313024.

The previous prime is 143244973. The next prime is 143245001. The reversal of 143244993 is 399442341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143244993 - 2⁵ = 143244961 is a prime.

It is the 11969-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143244923) by changing a digit.

It is a nontrivial repunit in base 11968.

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 7 ways as a sum of consecutive naturals, for example, 44080 + ... + 47217.

It is an arithmetic number, because the mean of its divisors is an integer number (23920076).

Almost surely, 2^143244993 is an apocalyptic number.

It is an amenable number.

143244993 is a deficient number, since it is larger than the sum of its proper divisors (48115615).

143244993 is an equidigital number, since it uses as much as digits as its factorization.

143244993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91823.

The product of its digits is 93312, while the sum is 39.

The square root of 143244993 is about 11968.5000313322. The cubic root of 143244993 is about 523.2306184971.

The spelling of 143244993 in words is "one hundred forty-three million, two hundred forty-four thousand, nine hundred ninety-three".