158328791 has 2 divisors, whose sum is σ = 158328792. Its totient is φ = 158328790.

The previous prime is 158328739. The next prime is 158328799. The reversal of 158328791 is 197823851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158328791 - 2⁶ = 158328727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158328799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79164395 + 79164396.

It is an arithmetic number, because the mean of its divisors is an integer number (79164396).

Almost surely, 2^158328791 is an apocalyptic number.

158328791 is a deficient number, since it is larger than the sum of its proper divisors (1).

158328791 is an equidigital number, since it uses as much as digits as its factorization.

158328791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 44.

The square root of 158328791 is about 12582.8768967991. The cubic root of 158328791 is about 540.9867543107.

The spelling of 158328791 in words is "one hundred fifty-eight million, three hundred twenty-eight thousand, seven hundred ninety-one".