158061317 has 4 divisors (see below), whose sum is σ = 161043660. Its totient is φ = 155078976.

The previous prime is 158061307. The next prime is 158061331. The reversal of 158061317 is 713160851.

158061317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 713160851 = 13 ⋅54858527.

It can be written as a sum of positive squares in 2 ways, for example, as 131010916 + 27050401 = 11446^2 + 5201^2 .

It is a cyclic number.

It is not a de Polignac number, because 158061317 - 2⁴ = 158061301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158061307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1491092 + ... + 1491197.

It is an arithmetic number, because the mean of its divisors is an integer number (40260915).

Almost surely, 2^158061317 is an apocalyptic number.

It is an amenable number.

158061317 is a deficient number, since it is larger than the sum of its proper divisors (2982343).

158061317 is an equidigital number, since it uses as much as digits as its factorization.

158061317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982342.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 158061317 is about 12572.2439126832. The cubic root of 158061317 is about 540.6819425114.

The spelling of 158061317 in words is "one hundred fifty-eight million, sixty-one thousand, three hundred seventeen".