158163723 has 6 divisors (see below), whose sum is σ = 228458724. Its totient is φ = 105442476.

The previous prime is 158163689. The next prime is 158163739. The reversal of 158163723 is 327361851.

158163723 is a `hidden beast` number, since 1 + 581 + 6 + 3 + 72 + 3 = 666.

158163723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158163723 - 2¹² = 158159627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158163763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8786865 + ... + 8786882.

It is an arithmetic number, because the mean of its divisors is an integer number (38076454).

Almost surely, 2^158163723 is an apocalyptic number.

158163723 is a deficient number, since it is larger than the sum of its proper divisors (70295001).

158163723 is a wasteful number, since it uses less digits than its factorization.

158163723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17573753 (or 17573750 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 158163723 is about 12576.3159550005. The cubic root of 158163723 is about 540.7986843825.

The spelling of 158163723 in words is "one hundred fifty-eight million, one hundred sixty-three thousand, seven hundred twenty-three".