14940421 has 2 divisors, whose sum is σ = 14940422. Its totient is φ = 14940420.

The previous prime is 14940391. The next prime is 14940427. The reversal of 14940421 is 12404941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14737921 + 202500 = 3839^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 14940421 - 2⁵ = 14940389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14940427) 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 as a sum of consecutive naturals, namely, 7470210 + 7470211.

It is an arithmetic number, because the mean of its divisors is an integer number (7470211).

Almost surely, 2^14940421 is an apocalyptic number.

It is an amenable number.

14940421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14940421 is an equidigital number, since it uses as much as digits as its factorization.

14940421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 14940421 is about 3865.2840775291. The cubic root of 14940421 is about 246.2942531719.

The spelling of 14940421 in words is "fourteen million, nine hundred forty thousand, four hundred twenty-one".