13161553 has 8 divisors (see below), whose sum is σ = 13983840. Its totient is φ = 12344640.

The previous prime is 13161527. The next prime is 13161583. The reversal of 13161553 is 35516131.

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

It is a cyclic number.

It is not a de Polignac number, because 13161553 - 2²¹ = 11064401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (1747980).

Almost surely, 2^13161553 is an apocalyptic number.

It is an amenable number.

13161553 is a deficient number, since it is larger than the sum of its proper divisors (822287).

13161553 is a wasteful number, since it uses less digits than its factorization.

13161553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687.

The product of its digits is 1350, while the sum is 25.

The square root of 13161553 is about 3627.8854722827. The cubic root of 13161553 is about 236.1034749252.

Adding to 13161553 its reverse (35516131), we get a palindrome (48677684).

The spelling of 13161553 in words is "thirteen million, one hundred sixty-one thousand, five hundred fifty-three".