13971101 has 2 divisors, whose sum is σ = 13971102. Its totient is φ = 13971100.

The previous prime is 13971073. The next prime is 13971103. The reversal of 13971101 is 10117931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13579225 + 391876 = 3685^2 + 626^2 .

It is an emirp because it is prime and its reverse (10117931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13971101 is a prime.

Together with 13971103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13971103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985550 + 6985551.

It is an arithmetic number, because the mean of its divisors is an integer number (6985551).

Almost surely, 2^13971101 is an apocalyptic number.

It is an amenable number.

13971101 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971101 is an equidigital number, since it uses as much as digits as its factorization.

13971101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 13971101 is about 3737.7936005082. The cubic root of 13971101 is about 240.8482771771.

The spelling of 13971101 in words is "thirteen million, nine hundred seventy-one thousand, one hundred one".