14533721 has 8 divisors (see below), whose sum is σ = 15024744. Its totient is φ = 14049280.

The previous prime is 14533697. The next prime is 14533741. The reversal of 14533721 is 12733541.

It can be written as a sum of positive squares in 4 ways, for example, as 366025 + 14167696 = 605^2 + 3764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14533721 - 2¹⁰ = 14532697 is a prime.

It is a super-2 number, since 2×14533721² = 422458092211682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14533741) 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 in 7 ways as a sum of consecutive naturals, for example, 3065 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (1878093).

Almost surely, 2^14533721 is an apocalyptic number.

It is an amenable number.

14533721 is a deficient number, since it is larger than the sum of its proper divisors (491023).

14533721 is a wasteful number, since it uses less digits than its factorization.

14533721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291.

The product of its digits is 2520, while the sum is 26.

The square root of 14533721 is about 3812.3117658450. The cubic root of 14533721 is about 244.0388330650.

The spelling of 14533721 in words is "fourteen million, five hundred thirty-three thousand, seven hundred twenty-one".