143744913 has 12 divisors (see below), whose sum is σ = 223603380. Its totient is φ = 88458336.

The previous prime is 143744897. The next prime is 143744933. The reversal of 143744913 is 319447341.

It can be written as a sum of positive squares in 2 ways, for example, as 15421329 + 128323584 = 3927^2 + 11328^2 .

It is not a de Polignac number, because 143744913 - 2⁴ = 143744897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143744933) 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 11 ways as a sum of consecutive naturals, for example, 614178 + ... + 614411.

It is an arithmetic number, because the mean of its divisors is an integer number (18633615).

Almost surely, 2^143744913 is an apocalyptic number.

143744913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

143744913 is a deficient number, since it is larger than the sum of its proper divisors (79858467).

143744913 is a wasteful number, since it uses less digits than its factorization.

143744913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228608 (or 1228605 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 143744913 is about 11989.3666638401. The cubic root of 143744913 is about 523.8385972703.

The spelling of 143744913 in words is "one hundred forty-three million, seven hundred forty-four thousand, nine hundred thirteen".