158277241 has 2 divisors, whose sum is σ = 158277242. Its totient is φ = 158277240.

The previous prime is 158277221. The next prime is 158277257. The reversal of 158277241 is 142772851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153884025 + 4393216 = 12405^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 158277241 - 2²³ = 149888633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158277241.

It is not a weakly prime, because it can be changed into another prime (158277221) 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, 79138620 + 79138621.

It is an arithmetic number, because the mean of its divisors is an integer number (79138621).

Almost surely, 2^158277241 is an apocalyptic number.

It is an amenable number.

158277241 is a deficient number, since it is larger than the sum of its proper divisors (1).

158277241 is an equidigital number, since it uses as much as digits as its factorization.

158277241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 37.

The square root of 158277241 is about 12580.8283113633. The cubic root of 158277241 is about 540.9280349538.

The spelling of 158277241 in words is "one hundred fifty-eight million, two hundred seventy-seven thousand, two hundred forty-one".