13213235 has 8 divisors (see below), whose sum is σ = 18121056. Its totient is φ = 9060480.

The previous prime is 13213231. The next prime is 13213237. The reversal of 13213235 is 53231231.

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

It is not a de Polignac number, because 13213235 - 2² = 13213231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213231) by changing a digit.

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, 188726 + ... + 188795.

It is an arithmetic number, because the mean of its divisors is an integer number (2265132).

Almost surely, 2^13213235 is an apocalyptic number.

13213235 is a deficient number, since it is larger than the sum of its proper divisors (4907821).

13213235 is an equidigital number, since it uses as much as digits as its factorization.

13213235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377533.

The product of its digits is 540, while the sum is 20.

The square root of 13213235 is about 3635.0013755156. The cubic root of 13213235 is about 236.4121103065.

Adding to 13213235 its reverse (53231231), we get a palindrome (66444466).

The spelling of 13213235 in words is "thirteen million, two hundred thirteen thousand, two hundred thirty-five".