105083511493 has 4 divisors (see below), whose sum is σ = 111264894540. Its totient is φ = 98902128448.

The previous prime is 105083511457. The next prime is 105083511541. The reversal of 105083511493 is 394115380501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79407294849 + 25676216644 = 281793^2 + 160238^2 .

It is a cyclic number.

It is not a de Polignac number, because 105083511493 - 2⁹ = 105083510981 is a prime.

It is a super-2 number, since 2×105083511493² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105083521493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3090691498 + ... + 3090691531.

It is an arithmetic number, because the mean of its divisors is an integer number (27816223635).

Almost surely, 2^105083511493 is an apocalyptic number.

It is an amenable number.

105083511493 is a deficient number, since it is larger than the sum of its proper divisors (6181383047).

105083511493 is an equidigital number, since it uses as much as digits as its factorization.

105083511493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181383046.

The product of its (nonzero) digits is 64800, while the sum is 40.

Adding to 105083511493 its reverse (394115380501), we get a palindrome (499198891994).

The spelling of 105083511493 in words is "one hundred five billion, eighty-three million, five hundred eleven thousand, four hundred ninety-three".