2105843401 has 2 divisors, whose sum is σ = 2105843402. Its totient is φ = 2105843400.

The previous prime is 2105843357. The next prime is 2105843417. The reversal of 2105843401 is 1043485012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1874803401 + 231040000 = 43299^2 + 15200^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105843401 - 2¹³ = 2105835209 is a prime.

It is a super-4 number, since 4×2105843401⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2105843401.

It is not a weakly prime, because it can be changed into another prime (2105843461) 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, 1052921700 + 1052921701.

It is an arithmetic number, because the mean of its divisors is an integer number (1052921701).

Almost surely, 2^2105843401 is an apocalyptic number.

It is an amenable number.

2105843401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105843401 is an equidigital number, since it uses as much as digits as its factorization.

2105843401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2105843401 is about 45889.4693911359. The cubic root of 2105843401 is about 1281.7658328730.

The spelling of 2105843401 in words is "two billion, one hundred five million, eight hundred forty-three thousand, four hundred one".