158127493 has 4 divisors (see below), whose sum is σ = 160807680. Its totient is φ = 155447308.

The previous prime is 158127491. The next prime is 158127503. The reversal of 158127493 is 394721851.

158127493 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394721851 = 1171 ⋅337081.

It is a cyclic number.

It is not a de Polignac number, because 158127493 - 2¹ = 158127491 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158127491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340005 + ... + 1340122.

It is an arithmetic number, because the mean of its divisors is an integer number (40201920).

Almost surely, 2^158127493 is an apocalyptic number.

It is an amenable number.

158127493 is a deficient number, since it is larger than the sum of its proper divisors (2680187).

158127493 is an equidigital number, since it uses as much as digits as its factorization.

158127493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680186.

The product of its digits is 60480, while the sum is 40.

The square root of 158127493 is about 12574.8754665802. The cubic root of 158127493 is about 540.7573882871.

The spelling of 158127493 in words is "one hundred fifty-eight million, one hundred twenty-seven thousand, four hundred ninety-three".