989213131 has 8 divisors (see below), whose sum is σ = 1074867200. Its totient is φ = 906918120.

The previous prime is 989213129. The next prime is 989213161. The reversal of 989213131 is 131312989.

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 989213131 - 2¹ = 989213129 is a prime.

It is a super-2 number, since 2×989213131² = 1957085237085646322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989213161) 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, 839151 + ... + 840328.

It is an arithmetic number, because the mean of its divisors is an integer number (134358400).

Almost surely, 2^989213131 is an apocalyptic number.

989213131 is a deficient number, since it is larger than the sum of its proper divisors (85654069).

989213131 is a wasteful number, since it uses less digits than its factorization.

989213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679529.

The product of its digits is 11664, while the sum is 37.

The square root of 989213131 is about 31451.7587902489. The cubic root of 989213131 is about 996.3913704569.

The spelling of 989213131 in words is "nine hundred eighty-nine million, two hundred thirteen thousand, one hundred thirty-one".