13121396 has 12 divisors (see below), whose sum is σ = 22988448. Its totient is φ = 6553272.

The previous prime is 13121371. The next prime is 13121411. The reversal of 13121396 is 69312131.

13121396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4655 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (1915704).

Almost surely, 2^13121396 is an apocalyptic number.

It is an amenable number.

13121396 is a deficient number, since it is larger than the sum of its proper divisors (9867052).

13121396 is a wasteful number, since it uses less digits than its factorization.

13121396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718 (or 3716 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 13121396 is about 3622.3467531422. The cubic root of 13121396 is about 235.8631064754.

The spelling of 13121396 in words is "thirteen million, one hundred twenty-one thousand, three hundred ninety-six".