143775349 has 2 divisors, whose sum is σ = 143775350. Its totient is φ = 143775348.

The previous prime is 143775347. The next prime is 143775371. The reversal of 143775349 is 943577341.

143775349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143568324 + 207025 = 11982^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 143775349 - 2¹ = 143775347 is a prime.

Together with 143775347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143775347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71887674 + 71887675.

It is an arithmetic number, because the mean of its divisors is an integer number (71887675).

Almost surely, 2^143775349 is an apocalyptic number.

It is an amenable number.

143775349 is a deficient number, since it is larger than the sum of its proper divisors (1).

143775349 is an equidigital number, since it uses as much as digits as its factorization.

143775349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The square root of 143775349 is about 11990.6358880586. The cubic root of 143775349 is about 523.8755665239.

The spelling of 143775349 in words is "one hundred forty-three million, seven hundred seventy-five thousand, three hundred forty-nine".