13971064 has 8 divisors (see below), whose sum is σ = 26195760. Its totient is φ = 6985528.

The previous prime is 13971047. The next prime is 13971073. The reversal of 13971064 is 46017931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 873184 + ... + 873199.

It is an arithmetic number, because the mean of its divisors is an integer number (3274470).

Almost surely, 2^13971064 is an apocalyptic number.

It is an amenable number.

13971064 is a deficient number, since it is larger than the sum of its proper divisors (12224696).

13971064 is a wasteful number, since it uses less digits than its factorization.

13971064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746389 (or 1746385 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13971064 is about 3737.7886510609. The cubic root of 13971064 is about 240.8480645621.

Adding to 13971064 its reverse (46017931), we get a palindrome (59988995).

The spelling of 13971064 in words is "thirteen million, nine hundred seventy-one thousand, sixty-four".