158317429 has 2 divisors, whose sum is σ = 158317430. Its totient is φ = 158317428.

The previous prime is 158317421. The next prime is 158317457. The reversal of 158317429 is 924713851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141491025 + 16826404 = 11895^2 + 4102^2 .

It is an emirp because it is prime and its reverse (924713851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158317429 - 2³ = 158317421 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 158317391 and 158317400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158317421) 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, 79158714 + 79158715.

It is an arithmetic number, because the mean of its divisors is an integer number (79158715).

Almost surely, 2^158317429 is an apocalyptic number.

It is an amenable number.

158317429 is a deficient number, since it is larger than the sum of its proper divisors (1).

158317429 is an equidigital number, since it uses as much as digits as its factorization.

158317429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 158317429 is about 12582.4254021234. The cubic root of 158317429 is about 540.9738132267.

The spelling of 158317429 in words is "one hundred fifty-eight million, three hundred seventeen thousand, four hundred twenty-nine".