158183281 has 2 divisors, whose sum is σ = 158183282. Its totient is φ = 158183280.

The previous prime is 158183279. The next prime is 158183287. The reversal of 158183281 is 182381851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139830625 + 18352656 = 11825^2 + 4284^2 .

It is a cyclic number.

It is not a de Polignac number, because 158183281 - 2¹ = 158183279 is a prime.

It is a super-2 number, since 2×158183281² = 50043900775849922, which contains 22 as substring.

Together with 158183279, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 158183281.

It is not a weakly prime, because it can be changed into another prime (158183287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79091640 + 79091641.

It is an arithmetic number, because the mean of its divisors is an integer number (79091641).

Almost surely, 2^158183281 is an apocalyptic number.

It is an amenable number.

158183281 is a deficient number, since it is larger than the sum of its proper divisors (1).

158183281 is an equidigital number, since it uses as much as digits as its factorization.

158183281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 37.

The square root of 158183281 is about 12577.0935036677. The cubic root of 158183281 is about 540.8209745860.

The spelling of 158183281 in words is "one hundred fifty-eight million, one hundred eighty-three thousand, two hundred eighty-one".