9164981 has 4 divisors (see below), whose sum is σ = 10474272. Its totient is φ = 7855692.

The previous prime is 9164959. The next prime is 9165007. The reversal of 9164981 is 1894619.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1894619 = 467 ⋅4057.

It is a cyclic number.

It is not a de Polignac number, because 9164981 - 2⁶ = 9164917 is a prime.

It is a super-2 number, since 2×9164981² = 167993753460722, 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 (9164941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654635 + ... + 654648.

It is an arithmetic number, because the mean of its divisors is an integer number (2618568).

Almost surely, 2^9164981 is an apocalyptic number.

It is an amenable number.

9164981 is a deficient number, since it is larger than the sum of its proper divisors (1309291).

9164981 is a wasteful number, since it uses less digits than its factorization.

9164981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309290.

The product of its digits is 15552, while the sum is 38.

The square root of 9164981 is about 3027.3719626105. The cubic root of 9164981 is about 209.2717099795.

The spelling of 9164981 in words is "nine million, one hundred sixty-four thousand, nine hundred eighty-one".