8981159 has 4 divisors (see below), whose sum is σ = 9797640. Its totient is φ = 8164680.

The previous prime is 8981153. The next prime is 8981177. The reversal of 8981159 is 9511898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8981159 - 2⁴ = 8981143 is a prime.

It is a super-2 number, since 2×8981159² = 161322433966562, which contains 22 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 (8981153) 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, 408224 + ... + 408245.

It is an arithmetic number, because the mean of its divisors is an integer number (2449410).

Almost surely, 2^8981159 is an apocalyptic number.

8981159 is a deficient number, since it is larger than the sum of its proper divisors (816481).

8981159 is a wasteful number, since it uses less digits than its factorization.

8981159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816480.

The product of its digits is 25920, while the sum is 41.

The square root of 8981159 is about 2996.8581881697. The cubic root of 8981159 is about 207.8631295677.

The spelling of 8981159 in words is "eight million, nine hundred eighty-one thousand, one hundred fifty-nine".