158257747 has 2 divisors, whose sum is σ = 158257748. Its totient is φ = 158257746.

The previous prime is 158257741. The next prime is 158257751. The reversal of 158257747 is 747752851.

It is a strong prime.

It is an emirp because it is prime and its reverse (747752851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158257747 - 2³ = 158257739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158257697 and 158257706.

It is not a weakly prime, because it can be changed into another prime (158257741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79128873 + 79128874.

It is an arithmetic number, because the mean of its divisors is an integer number (79128874).

Almost surely, 2^158257747 is an apocalyptic number.

158257747 is a deficient number, since it is larger than the sum of its proper divisors (1).

158257747 is an equidigital number, since it uses as much as digits as its factorization.

158257747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 548800, while the sum is 46.

The square root of 158257747 is about 12580.0535372470. The cubic root of 158257747 is about 540.9058264880.

The spelling of 158257747 in words is "one hundred fifty-eight million, two hundred fifty-seven thousand, seven hundred forty-seven".