13971275 has 12 divisors (see below), whose sum is σ = 17443824. Its totient is φ = 11100000.

The previous prime is 13971271. The next prime is 13971299. The reversal of 13971275 is 57217931.

It is a happy number.

It is not a de Polignac number, because 13971275 - 2² = 13971271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13971271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1925 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (1453652).

Almost surely, 2^13971275 is an apocalyptic number.

13971275 is a deficient number, since it is larger than the sum of its proper divisors (3472549).

13971275 is a wasteful number, since it uses less digits than its factorization.

13971275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862 (or 3857 counting only the distinct ones).

The product of its digits is 13230, while the sum is 35.

The square root of 13971275 is about 3737.8168761993. The cubic root of 13971275 is about 240.8492770369.

The spelling of 13971275 in words is "thirteen million, nine hundred seventy-one thousand, two hundred seventy-five".