158738823 has 6 divisors (see below), whose sum is σ = 229289424. Its totient is φ = 105825876.

The previous prime is 158738821. The next prime is 158738831. The reversal of 158738823 is 328837851.

158738823 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 158738823 - 2¹ = 158738821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158738821) 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, 8818815 + ... + 8818832.

It is an arithmetic number, because the mean of its divisors is an integer number (38214904).

Almost surely, 2^158738823 is an apocalyptic number.

158738823 is a deficient number, since it is larger than the sum of its proper divisors (70550601).

158738823 is a wasteful number, since it uses less digits than its factorization.

158738823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17637653 (or 17637650 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 158738823 is about 12599.1596148315. The cubic root of 158738823 is about 541.4533585771.

The spelling of 158738823 in words is "one hundred fifty-eight million, seven hundred thirty-eight thousand, eight hundred twenty-three".