14731402421 has 2 divisors, whose sum is σ = 14731402422. Its totient is φ = 14731402420.

The previous prime is 14731402349. The next prime is 14731402423. The reversal of 14731402421 is 12420413741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9119295025 + 5612107396 = 95495^2 + 74914^2 .

It is a cyclic number.

It is not a de Polignac number, because 14731402421 - 2¹⁴ = 14731386037 is a prime.

It is a super-2 number, since 2×14731402421² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 14731402423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14731402423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7365701210 + 7365701211.

It is an arithmetic number, because the mean of its divisors is an integer number (7365701211).

Almost surely, 2^14731402421 is an apocalyptic number.

It is an amenable number.

14731402421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14731402421 is an equidigital number, since it uses as much as digits as its factorization.

14731402421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 14731402421 in words is "fourteen billion, seven hundred thirty-one million, four hundred two thousand, four hundred twenty-one".