158227340189 has 4 divisors (see below), whose sum is σ = 161212761756. Its totient is φ = 155241918624.

The previous prime is 158227340153. The next prime is 158227340213. The reversal of 158227340189 is 981043722851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 981043722851 = 5869 ⋅167156879.

It can be written as a sum of positive squares in 2 ways, for example, as 128779064164 + 29448276025 = 358858^2 + 171605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158227340189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158227340989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492710704 + ... + 1492710809.

It is an arithmetic number, because the mean of its divisors is an integer number (40303190439).

Almost surely, 2^158227340189 is an apocalyptic number.

It is an amenable number.

158227340189 is a deficient number, since it is larger than the sum of its proper divisors (2985421567).

158227340189 is an equidigital number, since it uses as much as digits as its factorization.

158227340189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985421566.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 158227340189 in words is "one hundred fifty-eight billion, two hundred twenty-seven million, three hundred forty thousand, one hundred eighty-nine".