14953721 has 2 divisors, whose sum is σ = 14953722. Its totient is φ = 14953720.

The previous prime is 14953699. The next prime is 14953733. The reversal of 14953721 is 12735941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 4999696 = 3155^2 + 2236^2 .

It is a cyclic number.

It is not a de Polignac number, because 14953721 - 2¹⁰ = 14952697 is a prime.

It is a super-3 number, since 3×14953721³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (14953751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7476860 + 7476861.

It is an arithmetic number, because the mean of its divisors is an integer number (7476861).

Almost surely, 2^14953721 is an apocalyptic number.

It is an amenable number.

14953721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14953721 is an equidigital number, since it uses as much as digits as its factorization.

14953721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 14953721 is about 3867.0041375721. The cubic root of 14953721 is about 246.3673154154.

Subtracting from 14953721 its sum of digits (32), we obtain a square (14953689 = 3867²).

The spelling of 14953721 in words is "fourteen million, nine hundred fifty-three thousand, seven hundred twenty-one".