158383791 has 24 divisors (see below), whose sum is σ = 247335920. Its totient is φ = 97324416.

The previous prime is 158383783. The next prime is 158383807. The reversal of 158383791 is 197383851.

It is not a de Polignac number, because 158383791 - 2³ = 158383783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158383711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6190 + ... + 18843.

Almost surely, 2^158383791 is an apocalyptic number.

158383791 is a deficient number, since it is larger than the sum of its proper divisors (88952129).

158383791 is a wasteful number, since it uses less digits than its factorization.

158383791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25095 (or 25092 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 158383791 is about 12585.0622167711. The cubic root of 158383791 is about 541.0493894272.

The spelling of 158383791 in words is "one hundred fifty-eight million, three hundred eighty-three thousand, seven hundred ninety-one".