158165429 has 2 divisors, whose sum is σ = 158165430. Its totient is φ = 158165428.

The previous prime is 158165401. The next prime is 158165521. The reversal of 158165429 is 924561851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132135025 + 26030404 = 11495^2 + 5102^2 .

It is an emirp because it is prime and its reverse (924561851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158165429 - 2²⁰ = 157116853 is a 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 (158165129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79082714 + 79082715.

It is an arithmetic number, because the mean of its divisors is an integer number (79082715).

Almost surely, 2^158165429 is an apocalyptic number.

It is an amenable number.

158165429 is a deficient number, since it is larger than the sum of its proper divisors (1).

158165429 is an equidigital number, since it uses as much as digits as its factorization.

158165429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 41.

The square root of 158165429 is about 12576.3837807217. The cubic root of 158165429 is about 540.8006287796.

The spelling of 158165429 in words is "one hundred fifty-eight million, one hundred sixty-five thousand, four hundred twenty-nine".