14949721 has 2 divisors, whose sum is σ = 14949722. Its totient is φ = 14949720.

The previous prime is 14949661. The next prime is 14949731. The reversal of 14949721 is 12794941.

14949721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13220496 + 1729225 = 3636^2 + 1315^2 .

It is an emirp because it is prime and its reverse (12794941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14949721 is a prime.

It is not a weakly prime, because it can be changed into another prime (14949731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7474860 + 7474861.

It is an arithmetic number, because the mean of its divisors is an integer number (7474861).

Almost surely, 2^14949721 is an apocalyptic number.

It is an amenable number.

14949721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14949721 is an equidigital number, since it uses as much as digits as its factorization.

14949721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 14949721 is about 3866.4869067411. The cubic root of 14949721 is about 246.3453463651.

The spelling of 14949721 in words is "fourteen million, nine hundred forty-nine thousand, seven hundred twenty-one".