158445871 has 4 divisors (see below), whose sum is σ = 160014744. Its totient is φ = 156877000.

The previous prime is 158445869. The next prime is 158445887. The reversal of 158445871 is 178544851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178544851 = 29 ⋅6156719.

It is a cyclic number.

It is not a de Polignac number, because 158445871 - 2¹ = 158445869 is a prime.

It is a super-3 number, since 3×158445871³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158445811) 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, 784285 + ... + 784486.

It is an arithmetic number, because the mean of its divisors is an integer number (40003686).

Almost surely, 2^158445871 is an apocalyptic number.

158445871 is a deficient number, since it is larger than the sum of its proper divisors (1568873).

158445871 is a wasteful number, since it uses less digits than its factorization.

158445871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568872.

The product of its digits is 179200, while the sum is 43.

The square root of 158445871 is about 12587.5283912292. The cubic root of 158445871 is about 541.1200699736.

The spelling of 158445871 in words is "one hundred fifty-eight million, four hundred forty-five thousand, eight hundred seventy-one".