14752421 has 2 divisors, whose sum is σ = 14752422. Its totient is φ = 14752420.

The previous prime is 14752399. The next prime is 14752457. The reversal of 14752421 is 12425741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14668900 + 83521 = 3830^2 + 289^2 .

It is an emirp because it is prime and its reverse (12425741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14752421 - 2⁶ = 14752357 is a prime.

It is a super-2 number, since 2×14752421² = 435267850722482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14752471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7376210 + 7376211.

It is an arithmetic number, because the mean of its divisors is an integer number (7376211).

Almost surely, 2^14752421 is an apocalyptic number.

It is an amenable number.

14752421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14752421 is an equidigital number, since it uses as much as digits as its factorization.

14752421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 26.

The square root of 14752421 is about 3840.8880483555. Note that the first 3 decimals coincide. The cubic root of 14752421 is about 245.2568235662.

The spelling of 14752421 in words is "fourteen million, seven hundred fifty-two thousand, four hundred twenty-one".