143811113 has 2 divisors, whose sum is σ = 143811114. Its totient is φ = 143811112.

The previous prime is 143811091. The next prime is 143811127. The reversal of 143811113 is 311118341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125260864 + 18550249 = 11192^2 + 4307^2 .

It is an emirp because it is prime and its reverse (311118341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143811113 - 2²⁴ = 127033897 is a prime.

It is not a weakly prime, because it can be changed into another prime (143811163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71905556 + 71905557.

It is an arithmetic number, because the mean of its divisors is an integer number (71905557).

Almost surely, 2^143811113 is an apocalyptic number.

It is an amenable number.

143811113 is a deficient number, since it is larger than the sum of its proper divisors (1).

143811113 is an equidigital number, since it uses as much as digits as its factorization.

143811113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 23.

The square root of 143811113 is about 11992.1271257438. The cubic root of 143811113 is about 523.9190007950.

Adding to 143811113 its reverse (311118341), we get a palindrome (454929454).

The spelling of 143811113 in words is "one hundred forty-three million, eight hundred eleven thousand, one hundred thirteen".