158503113 has 12 divisors (see below), whose sum is σ = 231050820. Its totient is φ = 104698656.

The previous prime is 158503063. The next prime is 158503123. The reversal of 158503113 is 311305851.

158503113 is a `hidden beast` number, since 158 + 503 + 1 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 107993664 + 50509449 = 10392^2 + 7107^2 .

It is not a de Polignac number, because 158503113 - 2¹⁰ = 158502089 is a prime.

It is a super-3 number, since 3×158503113³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158503123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79806 + ... + 81767.

It is an arithmetic number, because the mean of its divisors is an integer number (19254235).

Almost surely, 2^158503113 is an apocalyptic number.

It is an amenable number.

158503113 is a deficient number, since it is larger than the sum of its proper divisors (72547707).

158503113 is a wasteful number, since it uses less digits than its factorization.

158503113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161688 (or 161685 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 158503113 is about 12589.8019444311. The cubic root of 158503113 is about 541.1852259066.

Adding to 158503113 its reverse (311305851), we get a palindrome (469808964).

The spelling of 158503113 in words is "one hundred fifty-eight million, five hundred three thousand, one hundred thirteen".