1040635105 has 4 divisors (see below), whose sum is σ = 1248762132. Its totient is φ = 832508080.

The previous prime is 1040635103. The next prime is 1040635117. The reversal of 1040635105 is 5015360401.

1040635105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5015360401 = 13711 ⋅365791.

It can be written as a sum of positive squares in 2 ways, for example, as 700343296 + 340291809 = 26464^2 + 18447^2 .

It is not a de Polignac number, because 1040635105 - 2¹ = 1040635103 is a prime.

It is a super-2 number, since 2×1040635105² = 2165842843516722050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1040635105.

It is not an unprimeable number, because it can be changed into a prime (1040635103) 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, 104063506 + ... + 104063515.

It is an arithmetic number, because the mean of its divisors is an integer number (312190533).

Almost surely, 2^1040635105 is an apocalyptic number.

It is an amenable number.

1040635105 is a deficient number, since it is larger than the sum of its proper divisors (208127027).

1040635105 is an equidigital number, since it uses as much as digits as its factorization.

1040635105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208127026.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1040635105 is about 32258.8763753482. The cubic root of 1040635105 is about 1013.3655998666.

Adding to 1040635105 its reverse (5015360401), we get a palindrome (6055995506).

The spelling of 1040635105 in words is "one billion, forty million, six hundred thirty-five thousand, one hundred five".