13491194 has 4 divisors (see below), whose sum is σ = 20236794. Its totient is φ = 6745596.

The previous prime is 13491161. The next prime is 13491211. The reversal of 13491194 is 49119431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49119431 = 101 ⋅486331.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 2765569 = 3275^2 + 1663^2 .

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 13491194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3372797 + ... + 3372800.

Almost surely, 2^13491194 is an apocalyptic number.

13491194 is a deficient number, since it is larger than the sum of its proper divisors (6745600).

13491194 is an equidigital number, since it uses as much as digits as its factorization.

13491194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6745599.

The product of its digits is 3888, while the sum is 32.

The square root of 13491194 is about 3673.0360738768. The cubic root of 13491194 is about 238.0583737427.

The spelling of 13491194 in words is "thirteen million, four hundred ninety-one thousand, one hundred ninety-four".