158029438723 has 4 divisors (see below), whose sum is σ = 170185549408. Its totient is φ = 145873328040.

The previous prime is 158029438709. The next prime is 158029438733. The reversal of 158029438723 is 327834920851.

It is a happy number.

158029438723 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: 327834920851 = 414461 ⋅790991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158029438723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158029438733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6078055323 + ... + 6078055348.

It is an arithmetic number, because the mean of its divisors is an integer number (42546387352).

Almost surely, 2^158029438723 is an apocalyptic number.

158029438723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

158029438723 is a deficient number, since it is larger than the sum of its proper divisors (12156110685).

158029438723 is a wasteful number, since it uses less digits than its factorization.

158029438723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12156110684.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 158029438723 in words is "one hundred fifty-eight billion, twenty-nine million, four hundred thirty-eight thousand, seven hundred twenty-three".