158022732493 has 4 divisors (see below), whose sum is σ = 159421163868. Its totient is φ = 156624301120.

The previous prime is 158022732443. The next prime is 158022732503. The reversal of 158022732493 is 394237220851.

158022732493 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: 394237220851 = 37 ⋅10655060023.

It can be written as a sum of positive squares in 2 ways, for example, as 69871934889 + 88150797604 = 264333^2 + 296902^2 .

It is a cyclic number.

It is not a de Polignac number, because 158022732493 - 2¹⁷ = 158022601421 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 (158022732443) 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, 699215518 + ... + 699215743.

It is an arithmetic number, because the mean of its divisors is an integer number (39855290967).

Almost surely, 2^158022732493 is an apocalyptic number.

It is an amenable number.

158022732493 is a deficient number, since it is larger than the sum of its proper divisors (1398431375).

158022732493 is a wasteful number, since it uses less digits than its factorization.

158022732493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398431374.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 158022732493 in words is "one hundred fifty-eight billion, twenty-two million, seven hundred thirty-two thousand, four hundred ninety-three".