9965149 has 4 divisors (see below), whose sum is σ = 9987136. Its totient is φ = 9943164.

The previous prime is 9965117. The next prime is 9965161. The reversal of 9965149 is 9415699.

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 9965149 - 2⁵ = 9965117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9962149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10299 + ... + 11224.

It is an arithmetic number, because the mean of its divisors is an integer number (2496784).

Almost surely, 2^9965149 is an apocalyptic number.

It is an amenable number.

9965149 is a deficient number, since it is larger than the sum of its proper divisors (21987).

9965149 is a wasteful number, since it uses less digits than its factorization.

9965149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21986.

The product of its digits is 87480, while the sum is 43.

The square root of 9965149 is about 3156.7624237500. The cubic root of 9965149 is about 215.1928970099.

The spelling of 9965149 in words is "nine million, nine hundred sixty-five thousand, one hundred forty-nine".