11213635 has 4 divisors (see below), whose sum is σ = 13456368. Its totient is φ = 8970904.

The previous prime is 11213621. The next prime is 11213639. The reversal of 11213635 is 53631211.

It is a happy number.

11213635 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11213635 - 2⁹ = 11213123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121359 + ... + 1121368.

It is an arithmetic number, because the mean of its divisors is an integer number (3364092).

Almost surely, 2^11213635 is an apocalyptic number.

11213635 is a deficient number, since it is larger than the sum of its proper divisors (2242733).

11213635 is an equidigital number, since it uses as much as digits as its factorization.

11213635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242732.

The product of its digits is 540, while the sum is 22.

The square root of 11213635 is about 3348.6766042722. The cubic root of 11213635 is about 223.8285451904.

Adding to 11213635 its reverse (53631211), we get a palindrome (64844846).

The spelling of 11213635 in words is "eleven million, two hundred thirteen thousand, six hundred thirty-five".