13552161 has 16 divisors (see below), whose sum is σ = 20866944. Its totient is φ = 7663104.

The previous prime is 13552151. The next prime is 13552163. The reversal of 13552161 is 16125531.

It is not a de Polignac number, because 13552161 - 2⁹ = 13551649 is a prime.

It is a super-2 number, since 2×13552161² = 367322135539842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13552163) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1290 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (1304184).

Almost surely, 2^13552161 is an apocalyptic number.

It is an amenable number.

13552161 is a deficient number, since it is larger than the sum of its proper divisors (7314783).

13552161 is an equidigital number, since it uses as much as digits as its factorization.

13552161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6760.

The product of its digits is 900, while the sum is 24.

The square root of 13552161 is about 3681.3259839357. The cubic root of 13552161 is about 238.4164319203.

Adding to 13552161 its reverse (16125531), we get a palindrome (29677692).

The spelling of 13552161 in words is "thirteen million, five hundred fifty-two thousand, one hundred sixty-one".