14542921 has 4 divisors (see below), whose sum is σ = 14552212. Its totient is φ = 14533632.

The previous prime is 14542907. The next prime is 14542943. The reversal of 14542921 is 12924541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7840000 + 6702921 = 2800^2 + 2589^2 .

It is a cyclic number.

It is not a de Polignac number, because 14542921 - 2¹¹ = 14540873 is a prime.

It is a super-2 number, since 2×14542921² = 422993102424482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14542921.

It is not an unprimeable number, because it can be changed into a prime (14542991) 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 3 ways as a sum of consecutive naturals, for example, 1656 + ... + 5641.

It is an arithmetic number, because the mean of its divisors is an integer number (3638053).

Almost surely, 2^14542921 is an apocalyptic number.

It is an amenable number.

14542921 is a deficient number, since it is larger than the sum of its proper divisors (9291).

14542921 is an equidigital number, since it uses as much as digits as its factorization.

14542921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9290.

The product of its digits is 2880, while the sum is 28.

The square root of 14542921 is about 3813.5181919063. The cubic root of 14542921 is about 244.0903152628.

The spelling of 14542921 in words is "fourteen million, five hundred forty-two thousand, nine hundred twenty-one".