158328881 has 8 divisors (see below), whose sum is σ = 170538720. Its totient is φ = 146506752.

The previous prime is 158328857. The next prime is 158328889. The reversal of 158328881 is 188823851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158328881 - 2⁶ = 158328817 is a prime.

It is a super-2 number, since 2×158328881² = 50136069117424322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158328889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96080 + ... + 97713.

It is an arithmetic number, because the mean of its divisors is an integer number (21317340).

Almost surely, 2^158328881 is an apocalyptic number.

It is an amenable number.

158328881 is a deficient number, since it is larger than the sum of its proper divisors (12209839).

158328881 is a wasteful number, since it uses less digits than its factorization.

158328881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193855.

The product of its digits is 122880, while the sum is 44.

The square root of 158328881 is about 12582.8804730872. The cubic root of 158328881 is about 540.9868568164.

The spelling of 158328881 in words is "one hundred fifty-eight million, three hundred twenty-eight thousand, eight hundred eighty-one".