158104489 has 2 divisors, whose sum is σ = 158104490. Its totient is φ = 158104488.

The previous prime is 158104451. The next prime is 158104493. The reversal of 158104489 is 984401851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139051264 + 19053225 = 11792^2 + 4365^2 .

It is an emirp because it is prime and its reverse (984401851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158104489 - 2¹⁹ = 157580201 is a prime.

It is a super-2 number, since 2×158104489² = 49994058883902242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158104409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79052244 + 79052245.

It is an arithmetic number, because the mean of its divisors is an integer number (79052245).

Almost surely, 2^158104489 is an apocalyptic number.

It is an amenable number.

158104489 is a deficient number, since it is larger than the sum of its proper divisors (1).

158104489 is an equidigital number, since it uses as much as digits as its factorization.

158104489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 158104489 is about 12573.9607522849. The cubic root of 158104489 is about 540.7311643290.

The spelling of 158104489 in words is "one hundred fifty-eight million, one hundred four thousand, four hundred eighty-nine".