158973071 has 2 divisors, whose sum is σ = 158973072. Its totient is φ = 158973070.

The previous prime is 158973029. The next prime is 158973083. The reversal of 158973071 is 170379851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158973071 - 2⁶ = 158973007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158973271) 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, 79486535 + 79486536.

It is an arithmetic number, because the mean of its divisors is an integer number (79486536).

Almost surely, 2^158973071 is an apocalyptic number.

158973071 is a deficient number, since it is larger than the sum of its proper divisors (1).

158973071 is an equidigital number, since it uses as much as digits as its factorization.

158973071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 158973071 is about 12608.4523633950. The cubic root of 158973071 is about 541.7195653059.

The spelling of 158973071 in words is "one hundred fifty-eight million, nine hundred seventy-three thousand, seventy-one".