13161235 has 4 divisors (see below), whose sum is σ = 15793488. Its totient is φ = 10528984.

The previous prime is 13161229. The next prime is 13161277. The reversal of 13161235 is 53216131.

It is a happy number.

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 13161235 - 2¹¹ = 13159187 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316119 + ... + 1316128.

It is an arithmetic number, because the mean of its divisors is an integer number (3948372).

Almost surely, 2^13161235 is an apocalyptic number.

13161235 is a deficient number, since it is larger than the sum of its proper divisors (2632253).

13161235 is an equidigital number, since it uses as much as digits as its factorization.

13161235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632252.

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

The square root of 13161235 is about 3627.8416448351. The cubic root of 13161235 is about 236.1015733889.

Adding to 13161235 its reverse (53216131), we get a palindrome (66377366).

The spelling of 13161235 in words is "thirteen million, one hundred sixty-one thousand, two hundred thirty-five".