989148951 has 24 divisors (see below), whose sum is σ = 1633716864. Its totient is φ = 564938640.

The previous prime is 989148889. The next prime is 989148959. The reversal of 989148951 is 159841989.

It is not a de Polignac number, because 989148951 - 2¹⁰ = 989147927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989148959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208516 + ... + 213206.

It is an arithmetic number, because the mean of its divisors is an integer number (68071536).

Almost surely, 2^989148951 is an apocalyptic number.

989148951 is a deficient number, since it is larger than the sum of its proper divisors (644567913).

989148951 is a wasteful number, since it uses less digits than its factorization.

989148951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051 (or 8048 counting only the distinct ones).

The product of its digits is 933120, while the sum is 54.

The square root of 989148951 is about 31450.7384809960. The cubic root of 989148951 is about 996.3698214165.

It can be divided in two parts, 989148 and 951, that added together give a palindrome (990099).

The spelling of 989148951 in words is "nine hundred eighty-nine million, one hundred forty-eight thousand, nine hundred fifty-one".