13553173 has 2 divisors, whose sum is σ = 13553174. Its totient is φ = 13553172.

The previous prime is 13553159. The next prime is 13553201. The reversal of 13553173 is 37135531.

It is an a-pointer prime, because the next prime (13553201) can be obtained adding 13553173 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7879249 + 5673924 = 2807^2 + 2382^2 .

It is a cyclic number.

It is not a de Polignac number, because 13553173 - 2¹³ = 13544981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13553123) 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 as a sum of consecutive naturals, namely, 6776586 + 6776587.

It is an arithmetic number, because the mean of its divisors is an integer number (6776587).

Almost surely, 2^13553173 is an apocalyptic number.

It is an amenable number.

13553173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553173 is an equidigital number, since it uses as much as digits as its factorization.

13553173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 28.

The square root of 13553173 is about 3681.4634318434. The cubic root of 13553173 is about 238.4223663103.

The spelling of 13553173 in words is "thirteen million, five hundred fifty-three thousand, one hundred seventy-three".