143145911 has 2 divisors, whose sum is σ = 143145912. Its totient is φ = 143145910.

The previous prime is 143145889. The next prime is 143145923. The reversal of 143145911 is 119541341.

143145911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143145911 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143145311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71572955 + 71572956.

It is an arithmetic number, because the mean of its divisors is an integer number (71572956).

Almost surely, 2^143145911 is an apocalyptic number.

143145911 is a deficient number, since it is larger than the sum of its proper divisors (1).

143145911 is an equidigital number, since it uses as much as digits as its factorization.

143145911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 143145911 is about 11964.3600330314. The cubic root of 143145911 is about 523.1099518155.

The spelling of 143145911 in words is "one hundred forty-three million, one hundred forty-five thousand, nine hundred eleven".