158543111 has 2 divisors, whose sum is σ = 158543112. Its totient is φ = 158543110.

The previous prime is 158543093. The next prime is 158543171. The reversal of 158543111 is 111345851.

158543111 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 is an emirp because it is prime and its reverse (111345851) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158543111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158543171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79271555 + 79271556.

It is an arithmetic number, because the mean of its divisors is an integer number (79271556).

Almost surely, 2^158543111 is an apocalyptic number.

158543111 is a deficient number, since it is larger than the sum of its proper divisors (1).

158543111 is an equidigital number, since it uses as much as digits as its factorization.

158543111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 29.

The square root of 158543111 is about 12591.3903521414. The cubic root of 158543111 is about 541.2307444787.

Adding to 158543111 its reverse (111345851), we get a palindrome (269888962).

The spelling of 158543111 in words is "one hundred fifty-eight million, five hundred forty-three thousand, one hundred eleven".