158973271 has 2 divisors, whose sum is σ = 158973272. Its totient is φ = 158973270.

The previous prime is 158973233. The next prime is 158973371. The reversal of 158973271 is 172379851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158973271 - 2¹¹ = 158971223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158973071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79486635 + 79486636.

It is an arithmetic number, because the mean of its divisors is an integer number (79486636).

Almost surely, 2^158973271 is an apocalyptic number.

158973271 is a deficient number, since it is larger than the sum of its proper divisors (1).

158973271 is an equidigital number, since it uses as much as digits as its factorization.

158973271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 43.

The square root of 158973271 is about 12608.4602945800. The cubic root of 158973271 is about 541.7197924803.

The spelling of 158973271 in words is "one hundred fifty-eight million, nine hundred seventy-three thousand, two hundred seventy-one".