13161373 has 4 divisors (see below), whose sum is σ = 13228380. Its totient is φ = 13094368.

The previous prime is 13161371. The next prime is 13161377. The reversal of 13161373 is 37316131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37316131 = 43 ⋅867817.

It can be written as a sum of positive squares in 2 ways, for example, as 7193124 + 5968249 = 2682^2 + 2443^2 .

It is a cyclic number.

It is not a de Polignac number, because 13161373 - 2¹ = 13161371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161371) 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 3 ways as a sum of consecutive naturals, for example, 33208 + ... + 33601.

It is an arithmetic number, because the mean of its divisors is an integer number (3307095).

Almost surely, 2^13161373 is an apocalyptic number.

It is an amenable number.

13161373 is a deficient number, since it is larger than the sum of its proper divisors (67007).

13161373 is an equidigital number, since it uses as much as digits as its factorization.

13161373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67006.

The product of its digits is 1134, while the sum is 25.

The square root of 13161373 is about 3627.8606643585. The cubic root of 13161373 is about 236.1023985876.

It can be divided in two parts, 131 and 61373, that added together give a square (61504 = 248²).

The spelling of 13161373 in words is "thirteen million, one hundred sixty-one thousand, three hundred seventy-three".