1832211421 has 2 divisors, whose sum is σ = 1832211422. Its totient is φ = 1832211420.

The previous prime is 1832211419. The next prime is 1832211461. The reversal of 1832211421 is 1241122381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1698346521 + 133864900 = 41211^2 + 11570^2 .

It is a cyclic number.

It is not a de Polignac number, because 1832211421 - 2¹ = 1832211419 is a prime.

Together with 1832211419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1832211461) 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, 916105710 + 916105711.

It is an arithmetic number, because the mean of its divisors is an integer number (916105711).

Almost surely, 2^1832211421 is an apocalyptic number.

It is an amenable number.

1832211421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1832211421 is an equidigital number, since it uses as much as digits as its factorization.

1832211421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 25.

The square root of 1832211421 is about 42804.3388104524. The cubic root of 1832211421 is about 1223.6537026109.

The spelling of 1832211421 in words is "one billion, eight hundred thirty-two million, two hundred eleven thousand, four hundred twenty-one".