143113549 has 2 divisors, whose sum is σ = 143113550. Its totient is φ = 143113548.

The previous prime is 143113519. The next prime is 143113559. The reversal of 143113549 is 945311341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131675625 + 11437924 = 11475^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 143113549 - 2⁵ = 143113517 is a prime.

It is equal to p_8078143 and since 143113549 and 8078143 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143113549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143113519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71556774 + 71556775.

It is an arithmetic number, because the mean of its divisors is an integer number (71556775).

Almost surely, 2^143113549 is an apocalyptic number.

It is an amenable number.

143113549 is a deficient number, since it is larger than the sum of its proper divisors (1).

143113549 is an equidigital number, since it uses as much as digits as its factorization.

143113549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 143113549 is about 11963.0075231942. The cubic root of 143113549 is about 523.0705277992.

The spelling of 143113549 in words is "one hundred forty-three million, one hundred thirteen thousand, five hundred forty-nine".