13172834 has 4 divisors (see below), whose sum is σ = 19759254. Its totient is φ = 6586416.

The previous prime is 13172827. The next prime is 13172839. The reversal of 13172834 is 43827131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43827131 = 53 ⋅826927.

It can be written as a sum of positive squares in only one way, i.e., 7155625 + 6017209 = 2675^2 + 2453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13172797 and 13172806.

It is not an unprimeable number, because it can be changed into a prime (13172839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3293207 + ... + 3293210.

Almost surely, 2^13172834 is an apocalyptic number.

13172834 is a deficient number, since it is larger than the sum of its proper divisors (6586420).

13172834 is an equidigital number, since it uses as much as digits as its factorization.

13172834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586419.

The product of its digits is 4032, while the sum is 29.

The square root of 13172834 is about 3629.4399016928. The cubic root of 13172834 is about 236.1709118173.

Adding to 13172834 its reverse (43827131), we get a palindrome (56999965).

The spelling of 13172834 in words is "thirteen million, one hundred seventy-two thousand, eight hundred thirty-four".