14591971 has 2 divisors, whose sum is σ = 14591972. Its totient is φ = 14591970.

The previous prime is 14591957. The next prime is 14591999. The reversal of 14591971 is 17919541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14591971 - 2¹¹ = 14589923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14591971.

It is not a weakly prime, because it can be changed into another prime (14591471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7295985 + 7295986.

It is an arithmetic number, because the mean of its divisors is an integer number (7295986).

Almost surely, 2^14591971 is an apocalyptic number.

14591971 is a deficient number, since it is larger than the sum of its proper divisors (1).

14591971 is an equidigital number, since it uses as much as digits as its factorization.

14591971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 37.

The square root of 14591971 is about 3819.9438477548. The cubic root of 14591971 is about 244.3644278889.

The spelling of 14591971 in words is "fourteen million, five hundred ninety-one thousand, nine hundred seventy-one".