158330009 has 2 divisors, whose sum is σ = 158330010. Its totient is φ = 158330008.

The previous prime is 158329979. The next prime is 158330057. The reversal of 158330009 is 900033851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81504784 + 76825225 = 9028^2 + 8765^2 .

It is a cyclic number.

It is not a de Polignac number, because 158330009 - 2⁸ = 158329753 is a prime.

It is not a weakly prime, because it can be changed into another prime (158338009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79165004 + 79165005.

It is an arithmetic number, because the mean of its divisors is an integer number (79165005).

Almost surely, 2^158330009 is an apocalyptic number.

It is an amenable number.

158330009 is a deficient number, since it is larger than the sum of its proper divisors (1).

158330009 is an equidigital number, since it uses as much as digits as its factorization.

158330009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 158330009 is about 12582.9252958126. The cubic root of 158330009 is about 540.9881415509.

The spelling of 158330009 in words is "one hundred fifty-eight million, three hundred thirty thousand, nine".