158261071 has 2 divisors, whose sum is σ = 158261072. Its totient is φ = 158261070.

The previous prime is 158261017. The next prime is 158261083. The reversal of 158261071 is 170162851.

Together with previous prime (158261017) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (170162851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158261071 - 2⁹ = 158260559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158261011) 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, 79130535 + 79130536.

It is an arithmetic number, because the mean of its divisors is an integer number (79130536).

Almost surely, 2^158261071 is an apocalyptic number.

158261071 is a deficient number, since it is larger than the sum of its proper divisors (1).

158261071 is an equidigital number, since it uses as much as digits as its factorization.

158261071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 158261071 is about 12580.1856504584. The cubic root of 158261071 is about 540.9096134714.

The spelling of 158261071 in words is "one hundred fifty-eight million, two hundred sixty-one thousand, seventy-one".