11345865 has 16 divisors (see below), whose sum is σ = 18644928. Its totient is φ = 5887296.

The previous prime is 11345857. The next prime is 11345881. The reversal of 11345865 is 56854311.

It is not a de Polignac number, because 11345865 - 2³ = 11345857 is a prime.

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, 9667 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (1165308).

Almost surely, 2^11345865 is an apocalyptic number.

11345865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11345865 is a deficient number, since it is larger than the sum of its proper divisors (7299063).

11345865 is a wasteful number, since it uses less digits than its factorization.

11345865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20488.

The product of its digits is 14400, while the sum is 33.

The square root of 11345865 is about 3368.3623617420. The cubic root of 11345865 is about 224.7048970721.

The spelling of 11345865 in words is "eleven million, three hundred forty-five thousand, eight hundred sixty-five".