421355010149 has 2 divisors, whose sum is σ = 421355010150. Its totient is φ = 421355010148.

The previous prime is 421355010077. The next prime is 421355010187. The reversal of 421355010149 is 941010553124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415747696225 + 5607313924 = 644785^2 + 74882^2 .

It is a cyclic number.

It is not a de Polignac number, because 421355010149 - 2¹² = 421355006053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421355010649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210677505074 + 210677505075.

It is an arithmetic number, because the mean of its divisors is an integer number (210677505075).

Almost surely, 2^421355010149 is an apocalyptic number.

It is an amenable number.

421355010149 is a deficient number, since it is larger than the sum of its proper divisors (1).

421355010149 is an equidigital number, since it uses as much as digits as its factorization.

421355010149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 421355010149 in words is "four hundred twenty-one billion, three hundred fifty-five million, ten thousand, one hundred forty-nine".