14942821 has 2 divisors, whose sum is σ = 14942822. Its totient is φ = 14942820.

The previous prime is 14942803. The next prime is 14942827. The reversal of 14942821 is 12824941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14861025 + 81796 = 3855^2 + 286^2 .

It is a cyclic number.

It is not a de Polignac number, because 14942821 - 2¹⁵ = 14910053 is a prime.

It is a super-3 number, since 3×14942821³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14942827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7471410 + 7471411.

It is an arithmetic number, because the mean of its divisors is an integer number (7471411).

Almost surely, 2^14942821 is an apocalyptic number.

It is an amenable number.

14942821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14942821 is an equidigital number, since it uses as much as digits as its factorization.

14942821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 14942821 is about 3865.5945208984. The cubic root of 14942821 is about 246.3074405414.

The spelling of 14942821 in words is "fourteen million, nine hundred forty-two thousand, eight hundred twenty-one".