13971075 has 24 divisors (see below), whose sum is σ = 23324400. Its totient is φ = 7378560.

The previous prime is 13971073. The next prime is 13971101. The reversal of 13971075 is 57017931.

13971075 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13971075 - 2¹ = 13971073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13971073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7321 + ... + 9029.

It is an arithmetic number, because the mean of its divisors is an integer number (971850).

Almost surely, 2^13971075 is an apocalyptic number.

13971075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13971075 is a deficient number, since it is larger than the sum of its proper divisors (9353325).

13971075 is a wasteful number, since it uses less digits than its factorization.

13971075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1826 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 13971075 is about 3737.7901225189. The cubic root of 13971075 is about 240.8481277720.

The spelling of 13971075 in words is "thirteen million, nine hundred seventy-one thousand, seventy-five".