158428033 has 8 divisors (see below), whose sum is σ = 160491240. Its totient is φ = 156378240.

The previous prime is 158428027. The next prime is 158428087. The reversal of 158428033 is 330824851.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11242609 + 147185424 = 3353^2 + 12132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158428033 - 2¹³ = 158419841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158428033.

It is not an unprimeable number, because it can be changed into a prime (158428003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21603 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (20061405).

Almost surely, 2^158428033 is an apocalyptic number.

It is an amenable number.

158428033 is a deficient number, since it is larger than the sum of its proper divisors (2063207).

158428033 is a wasteful number, since it uses less digits than its factorization.

158428033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 158428033 is about 12586.8198128042. The cubic root of 158428033 is about 541.0997625925.

The spelling of 158428033 in words is "one hundred fifty-eight million, four hundred twenty-eight thousand, thirty-three".