158443133 has 2 divisors, whose sum is σ = 158443134. Its totient is φ = 158443132.

The previous prime is 158443127. The next prime is 158443151. The reversal of 158443133 is 331344851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119530489 + 38912644 = 10933^2 + 6238^2 .

It is an emirp because it is prime and its reverse (331344851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158443133 - 2⁸ = 158442877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158443133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158443123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79221566 + 79221567.

It is an arithmetic number, because the mean of its divisors is an integer number (79221567).

Almost surely, 2^158443133 is an apocalyptic number.

It is an amenable number.

158443133 is a deficient number, since it is larger than the sum of its proper divisors (1).

158443133 is an equidigital number, since it uses as much as digits as its factorization.

158443133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 158443133 is about 12587.4196323154. The cubic root of 158443133 is about 541.1169530410.

Adding to 158443133 its reverse (331344851), we get a palindrome (489787984).

The spelling of 158443133 in words is "one hundred fifty-eight million, four hundred forty-three thousand, one hundred thirty-three".