3105541421 has 2 divisors, whose sum is σ = 3105541422. Its totient is φ = 3105541420.

The previous prime is 3105541409. The next prime is 3105541441. The reversal of 3105541421 is 1241455013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2893256521 + 212284900 = 53789^2 + 14570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3105541421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3105541441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552770710 + 1552770711.

It is an arithmetic number, because the mean of its divisors is an integer number (1552770711).

Almost surely, 2^3105541421 is an apocalyptic number.

It is an amenable number.

3105541421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105541421 is an equidigital number, since it uses as much as digits as its factorization.

3105541421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 3105541421 is about 55727.3848390538. The cubic root of 3105541421 is about 1458.9680298937.

Adding to 3105541421 its reverse (1241455013), we get a palindrome (4346996434).

The spelling of 3105541421 in words is "three billion, one hundred five million, five hundred forty-one thousand, four hundred twenty-one".