13121294 has 4 divisors (see below), whose sum is σ = 19681944. Its totient is φ = 6560646.

The previous prime is 13121291. The next prime is 13121309. The reversal of 13121294 is 49212131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49212131 = 367 ⋅134093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280322 + ... + 3280325.

It is an arithmetic number, because the mean of its divisors is an integer number (4920486).

Almost surely, 2^13121294 is an apocalyptic number.

13121294 is a deficient number, since it is larger than the sum of its proper divisors (6560650).

13121294 is an equidigital number, since it uses as much as digits as its factorization.

13121294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560649.

The product of its digits is 432, while the sum is 23.

The square root of 13121294 is about 3622.3326738443. The cubic root of 13121294 is about 235.8624953082.

The spelling of 13121294 in words is "thirteen million, one hundred twenty-one thousand, two hundred ninety-four".