421414013 has 2 divisors, whose sum is σ = 421414014. Its totient is φ = 421414012.

The previous prime is 421414001. The next prime is 421414057. The reversal of 421414013 is 310414124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351825049 + 69588964 = 18757^2 + 8342^2 .

It is a cyclic number.

It is not a de Polignac number, because 421414013 - 2²² = 417219709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421414613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210707006 + 210707007.

It is an arithmetic number, because the mean of its divisors is an integer number (210707007).

Almost surely, 2^421414013 is an apocalyptic number.

It is an amenable number.

421414013 is a deficient number, since it is larger than the sum of its proper divisors (1).

421414013 is an equidigital number, since it uses as much as digits as its factorization.

421414013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 421414013 is about 20528.3709290338. The cubic root of 421414013 is about 749.7267229568.

Adding to 421414013 its reverse (310414124), we get a palindrome (731828137).

The spelling of 421414013 in words is "four hundred twenty-one million, four hundred fourteen thousand, thirteen".