158799841 has 2 divisors, whose sum is σ = 158799842. Its totient is φ = 158799840.

The previous prime is 158799829. The next prime is 158799869. The reversal of 158799841 is 148997851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158659216 + 140625 = 12596^2 + 375^2 .

It is an emirp because it is prime and its reverse (148997851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158799841 - 2¹³ = 158791649 is a prime.

It is not a weakly prime, because it can be changed into another prime (158799871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79399920 + 79399921.

It is an arithmetic number, because the mean of its divisors is an integer number (79399921).

Almost surely, 2^158799841 is an apocalyptic number.

It is an amenable number.

158799841 is a deficient number, since it is larger than the sum of its proper divisors (1).

158799841 is an equidigital number, since it uses as much as digits as its factorization.

158799841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 52.

The square root of 158799841 is about 12601.5808928880. The cubic root of 158799841 is about 541.5227265450.

The spelling of 158799841 in words is "one hundred fifty-eight million, seven hundred ninety-nine thousand, eight hundred forty-one".