158317541 has 2 divisors, whose sum is σ = 158317542. Its totient is φ = 158317540.

The previous prime is 158317517. The next prime is 158317543. The reversal of 158317541 is 145713851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155725441 + 2592100 = 12479^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 158317541 - 2¹⁰ = 158316517 is a prime.

Together with 158317543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158317543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79158770 + 79158771.

It is an arithmetic number, because the mean of its divisors is an integer number (79158771).

Almost surely, 2^158317541 is an apocalyptic number.

It is an amenable number.

158317541 is a deficient number, since it is larger than the sum of its proper divisors (1).

158317541 is an equidigital number, since it uses as much as digits as its factorization.

158317541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 158317541 is about 12582.4298527749. The cubic root of 158317541 is about 540.9739407955.

The spelling of 158317541 in words is "one hundred fifty-eight million, three hundred seventeen thousand, five hundred forty-one".