11273665 has 16 divisors (see below), whose sum is σ = 14648256. Its totient is φ = 8280000.

The previous prime is 11273653. The next prime is 11273681. The reversal of 11273665 is 56637211.

11273665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11273665 - 2¹³ = 11265473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15970 + ... + 16660.

It is an arithmetic number, because the mean of its divisors is an integer number (915516).

Almost surely, 2^11273665 is an apocalyptic number.

It is an amenable number.

11273665 is a deficient number, since it is larger than the sum of its proper divisors (3374591).

11273665 is a wasteful number, since it uses less digits than its factorization.

11273665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its digits is 7560, while the sum is 31.

The square root of 11273665 is about 3357.6278828959. The cubic root of 11273665 is about 224.2272420208.

The spelling of 11273665 in words is "eleven million, two hundred seventy-three thousand, six hundred sixty-five".