158347169 has 2 divisors, whose sum is σ = 158347170. Its totient is φ = 158347168.

The previous prime is 158347127. The next prime is 158347181. The reversal of 158347169 is 961743851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84180625 + 74166544 = 9175^2 + 8612^2 .

It is an emirp because it is prime and its reverse (961743851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158347169 - 2¹⁶ = 158281633 is a prime.

It is a super-2 number, since 2×158347169² = 50147651860629122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158347069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79173584 + 79173585.

It is an arithmetic number, because the mean of its divisors is an integer number (79173585).

Almost surely, 2^158347169 is an apocalyptic number.

It is an amenable number.

158347169 is a deficient number, since it is larger than the sum of its proper divisors (1).

158347169 is an equidigital number, since it uses as much as digits as its factorization.

158347169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 158347169 is about 12583.6071537536. The cubic root of 158347169 is about 541.0076851636.

The spelling of 158347169 in words is "one hundred fifty-eight million, three hundred forty-seven thousand, one hundred sixty-nine".