158309105 has 4 divisors (see below), whose sum is σ = 189970932. Its totient is φ = 126647280.

The previous prime is 158309087. The next prime is 158309143. The reversal of 158309105 is 501903851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501903851 = 113 ⋅4441627.

It can be written as a sum of positive squares in 2 ways, for example, as 39150049 + 119159056 = 6257^2 + 10916^2 .

It is not a de Polignac number, because 158309105 - 2¹⁴ = 158292721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 15830906 + ... + 15830915.

It is an arithmetic number, because the mean of its divisors is an integer number (47492733).

Almost surely, 2^158309105 is an apocalyptic number.

It is an amenable number.

158309105 is a deficient number, since it is larger than the sum of its proper divisors (31661827).

158309105 is an equidigital number, since it uses as much as digits as its factorization.

158309105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31661826.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 158309105 is about 12582.0946189416. The cubic root of 158309105 is about 540.9643319692.

The spelling of 158309105 in words is "one hundred fifty-eight million, three hundred nine thousand, one hundred five".