11213765 has 8 divisors (see below), whose sum is σ = 14041728. Its totient is φ = 8580880.

The previous prime is 11213759. The next prime is 11213771. The reversal of 11213765 is 56731211.

11213765 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11213759) and next prime (11213771).

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

It is not a de Polignac number, because 11213765 - 2⁸ = 11213509 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, 48641 + ... + 48870.

It is an arithmetic number, because the mean of its divisors is an integer number (1755216).

Almost surely, 2^11213765 is an apocalyptic number.

It is an amenable number.

11213765 is a deficient number, since it is larger than the sum of its proper divisors (2827963).

11213765 is an equidigital number, since it uses as much as digits as its factorization.

11213765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97539.

The product of its digits is 1260, while the sum is 26.

The square root of 11213765 is about 3348.6960148691. The cubic root of 11213765 is about 223.8294101374.

Adding to 11213765 its reverse (56731211), we get a palindrome (67944976).

The spelling of 11213765 in words is "eleven million, two hundred thirteen thousand, seven hundred sixty-five".