13950971 has 2 divisors, whose sum is σ = 13950972. Its totient is φ = 13950970.

The previous prime is 13950953. The next prime is 13950973. The reversal of 13950971 is 17905931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13950971 - 2²² = 9756667 is a prime.

Together with 13950973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13950973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6975485 + 6975486.

It is an arithmetic number, because the mean of its divisors is an integer number (6975486).

Almost surely, 2^13950971 is an apocalyptic number.

13950971 is a deficient number, since it is larger than the sum of its proper divisors (1).

13950971 is an equidigital number, since it uses as much as digits as its factorization.

13950971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 13950971 is about 3735.0998647961. The cubic root of 13950971 is about 240.7325476627.

The spelling of 13950971 in words is "thirteen million, nine hundred fifty thousand, nine hundred seventy-one".