8981129 has 4 divisors (see below), whose sum is σ = 9453840. Its totient is φ = 8508420.

The previous prime is 8981123. The next prime is 8981143. The reversal of 8981129 is 9211898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8981129 - 2⁴ = 8981113 is a prime.

It is a super-2 number, since 2×8981129² = 161321356229282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8981092 and 8981101.

It is not an unprimeable number, because it can be changed into a prime (8981123) 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, 236327 + ... + 236364.

It is an arithmetic number, because the mean of its divisors is an integer number (2363460).

Almost surely, 2^8981129 is an apocalyptic number.

It is an amenable number.

8981129 is a deficient number, since it is larger than the sum of its proper divisors (472711).

8981129 is a wasteful number, since it uses less digits than its factorization.

8981129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472710.

The product of its digits is 10368, while the sum is 38.

The square root of 8981129 is about 2996.8531829237. The cubic root of 8981129 is about 207.8628981239.

It can be divided in two parts, 89 and 81129, that added together give a palindrome (81218).

The spelling of 8981129 in words is "eight million, nine hundred eighty-one thousand, one hundred twenty-nine".