10165649 has 4 divisors (see below), whose sum is σ = 10947636. Its totient is φ = 9383664.

The previous prime is 10165637. The next prime is 10165681. The reversal of 10165649 is 94656101.

10165649 is digitally balanced in base 2, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4558225 + 5607424 = 2135^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 10165649 - 2⁴ = 10165633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10165349) 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, 390974 + ... + 390999.

It is an arithmetic number, because the mean of its divisors is an integer number (2736909).

Almost surely, 2^10165649 is an apocalyptic number.

It is an amenable number.

10165649 is a deficient number, since it is larger than the sum of its proper divisors (781987).

10165649 is an equidigital number, since it uses as much as digits as its factorization.

10165649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781986.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 10165649 is about 3188.3614914247. The cubic root of 10165649 is about 216.6265600978.

The spelling of 10165649 in words is "ten million, one hundred sixty-five thousand, six hundred forty-nine".