14652721 has 2 divisors, whose sum is σ = 14652722. Its totient is φ = 14652720.

The previous prime is 14652719. The next prime is 14652727. The reversal of 14652721 is 12725641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10491121 + 4161600 = 3239^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 14652721 - 2¹ = 14652719 is a prime.

Together with 14652719, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14652721.

It is not a weakly prime, because it can be changed into another prime (14652727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7326360 + 7326361.

It is an arithmetic number, because the mean of its divisors is an integer number (7326361).

Almost surely, 2^14652721 is an apocalyptic number.

It is an amenable number.

14652721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14652721 is an equidigital number, since it uses as much as digits as its factorization.

14652721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 14652721 is about 3827.8872762922. The cubic root of 14652721 is about 244.7030749704.

It can be divided in two parts, 1465 and 2721, that added together give a triangular number (4186 = T₉₁).

The spelling of 14652721 in words is "fourteen million, six hundred fifty-two thousand, seven hundred twenty-one".