143656349 has 2 divisors, whose sum is σ = 143656350. Its totient is φ = 143656348.

The previous prime is 143656319. The next prime is 143656369. The reversal of 143656349 is 943656341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125037124 + 18619225 = 11182^2 + 4315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143656349 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143656319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71828174 + 71828175.

It is an arithmetic number, because the mean of its divisors is an integer number (71828175).

Almost surely, 2^143656349 is an apocalyptic number.

It is an amenable number.

143656349 is a deficient number, since it is larger than the sum of its proper divisors (1).

143656349 is an equidigital number, since it uses as much as digits as its factorization.

143656349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The square root of 143656349 is about 11985.6726552997. The cubic root of 143656349 is about 523.7309928300.

The spelling of 143656349 in words is "one hundred forty-three million, six hundred fifty-six thousand, three hundred forty-nine".