158032271 has 4 divisors (see below), whose sum is σ = 158227944. Its totient is φ = 157836600.

The previous prime is 158032261. The next prime is 158032279. The reversal of 158032271 is 172230851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172230851 = 13 ⋅13248527.

It is a cyclic number.

It is not a de Polignac number, because 158032271 - 2⁶ = 158032207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158032279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96620 + ... + 98241.

It is an arithmetic number, because the mean of its divisors is an integer number (39556986).

Almost surely, 2^158032271 is an apocalyptic number.

158032271 is a deficient number, since it is larger than the sum of its proper divisors (195673).

158032271 is an equidigital number, since it uses as much as digits as its factorization.

158032271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195672.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 158032271 is about 12571.0886958927. The cubic root of 158032271 is about 540.6488211674.

The spelling of 158032271 in words is "one hundred fifty-eight million, thirty-two thousand, two hundred seventy-one".