14745821 has 4 divisors (see below), whose sum is σ = 14756352. Its totient is φ = 14735292.

The previous prime is 14745799. The next prime is 14745853. The reversal of 14745821 is 12854741.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14745821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14745421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2771 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (3689088).

Almost surely, 2^14745821 is an apocalyptic number.

It is an amenable number.

14745821 is a deficient number, since it is larger than the sum of its proper divisors (10531).

14745821 is an equidigital number, since it uses as much as digits as its factorization.

14745821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10530.

The product of its digits is 8960, while the sum is 32.

The square root of 14745821 is about 3840.0287759338. The cubic root of 14745821 is about 245.2202434349.

The spelling of 14745821 in words is "fourteen million, seven hundred forty-five thousand, eight hundred twenty-one".