13273665 has 16 divisors (see below), whose sum is σ = 21384000. Its totient is φ = 7030592.

The previous prime is 13273657. The next prime is 13273669. The reversal of 13273665 is 56637231.

It is a cyclic number.

It is not a de Polignac number, because 13273665 - 2³ = 13273657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13273669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735 + ... + 5204.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^13273665 is an apocalyptic number.

13273665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13273665 is a deficient number, since it is larger than the sum of its proper divisors (8110335).

13273665 is a wasteful number, since it uses less digits than its factorization.

13273665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096.

The product of its digits is 22680, while the sum is 33.

The square root of 13273665 is about 3643.3041322404. The cubic root of 13273665 is about 236.7719681729.

The spelling of 13273665 in words is "thirteen million, two hundred seventy-three thousand, six hundred sixty-five".