105050012405 has 8 divisors (see below), whose sum is σ = 135756939192. Its totient is φ = 77575393728.

The previous prime is 105050012401. The next prime is 105050012461. The reversal of 105050012405 is 504210050501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1649821924 + 103400190481 = 40618^2 + 321559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105050012405 - 2² = 105050012401 is a prime.

It is a super-2 number, since 2×105050012405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105050012401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808076954 + ... + 808077083.

It is an arithmetic number, because the mean of its divisors is an integer number (16969617399).

Almost surely, 2^105050012405 is an apocalyptic number.

It is an amenable number.

105050012405 is a deficient number, since it is larger than the sum of its proper divisors (30706926787).

105050012405 is a wasteful number, since it uses less digits than its factorization.

105050012405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616154055.

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 105050012405 its reverse (504210050501), we get a palindrome (609260062906).

The spelling of 105050012405 in words is "one hundred five billion, fifty million, twelve thousand, four hundred five".