9135649 has 4 divisors (see below), whose sum is σ = 9142420. Its totient is φ = 9128880.

The previous prime is 9135631. The next prime is 9135653. The reversal of 9135649 is 9465319.

9135649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9465319 = 337 ⋅28087.

It can be written as a sum of positive squares in 2 ways, for example, as 4326400 + 4809249 = 2080^2 + 2193^2 .

It is a cyclic number.

It is not a de Polignac number, because 9135649 - 2⁷ = 9135521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9135629) 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, 594 + ... + 4315.

It is an arithmetic number, because the mean of its divisors is an integer number (2285605).

Almost surely, 2^9135649 is an apocalyptic number.

It is an amenable number.

9135649 is a deficient number, since it is larger than the sum of its proper divisors (6771).

9135649 is a wasteful number, since it uses less digits than its factorization.

9135649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770.

The product of its digits is 29160, while the sum is 37.

The square root of 9135649 is about 3022.5236144652. The cubic root of 9135649 is about 209.0482173193.

The spelling of 9135649 in words is "nine million, one hundred thirty-five thousand, six hundred forty-nine".