105554444309 has 2 divisors, whose sum is σ = 105554444310. Its totient is φ = 105554444308.

The previous prime is 105554444299. The next prime is 105554444399. The reversal of 105554444309 is 903444455501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102496022500 + 3058421809 = 320150^2 + 55303^2 .

It is a cyclic number.

It is not a de Polignac number, because 105554444309 - 2⁴ = 105554444293 is a prime.

It is a super-2 number, since 2×105554444309² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105554444309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105554444399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52777222154 + 52777222155.

It is an arithmetic number, because the mean of its divisors is an integer number (52777222155).

Almost surely, 2^105554444309 is an apocalyptic number.

It is an amenable number.

105554444309 is a deficient number, since it is larger than the sum of its proper divisors (1).

105554444309 is an equidigital number, since it uses as much as digits as its factorization.

105554444309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 105554444309 in words is "one hundred five billion, five hundred fifty-four million, four hundred forty-four thousand, three hundred nine".