158171543 has 2 divisors, whose sum is σ = 158171544. Its totient is φ = 158171542.

The previous prime is 158171527. The next prime is 158171551. The reversal of 158171543 is 345171851.

158171543 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 not a de Polignac number, because 158171543 - 2⁴ = 158171527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158171513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79085771 + 79085772.

It is an arithmetic number, because the mean of its divisors is an integer number (79085772).

Almost surely, 2^158171543 is an apocalyptic number.

158171543 is a deficient number, since it is larger than the sum of its proper divisors (1).

158171543 is an equidigital number, since it uses as much as digits as its factorization.

158171543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

The square root of 158171543 is about 12576.6268530159. The cubic root of 158171543 is about 540.8075970373.

The spelling of 158171543 in words is "one hundred fifty-eight million, one hundred seventy-one thousand, five hundred forty-three".