11820365 has 8 divisors (see below), whose sum is σ = 14310648. Its totient is φ = 9372160.

The previous prime is 11820349. The next prime is 11820407. The reversal of 11820365 is 56302811.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 11682724 = 371^2 + 3418^2 .

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

It is not a de Polignac number, because 11820365 - 2⁴ = 11820349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9896 + ... + 11025.

It is an arithmetic number, because the mean of its divisors is an integer number (1788831).

Almost surely, 2^11820365 is an apocalyptic number.

It is an amenable number.

11820365 is a deficient number, since it is larger than the sum of its proper divisors (2490283).

11820365 is a wasteful number, since it uses less digits than its factorization.

11820365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21039.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 11820365 is about 3438.0757699620. The cubic root of 11820365 is about 227.7947072265.

The spelling of 11820365 in words is "eleven million, eight hundred twenty thousand, three hundred sixty-five".