13273865 has 8 divisors (see below), whose sum is σ = 17376768. Its totient is φ = 9653680.

The previous prime is 13273853. The next prime is 13273901. The reversal of 13273865 is 56837231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13273865 - 2⁴ = 13273849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120617 + ... + 120726.

It is an arithmetic number, because the mean of its divisors is an integer number (2172096).

Almost surely, 2^13273865 is an apocalyptic number.

It is an amenable number.

13273865 is a deficient number, since it is larger than the sum of its proper divisors (4102903).

13273865 is a wasteful number, since it uses less digits than its factorization.

13273865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241359.

The product of its digits is 30240, while the sum is 35.

The square root of 13273865 is about 3643.3315797495. The cubic root of 13273865 is about 236.7731573485.

The spelling of 13273865 in words is "thirteen million, two hundred seventy-three thousand, eight hundred sixty-five".