1000075105 has 4 divisors (see below), whose sum is σ = 1200090132. Its totient is φ = 800060080.

The previous prime is 1000075103. The next prime is 1000075117. The reversal of 1000075105 is 5015700001.

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 498718224 + 501356881 = 22332^2 + 22391^2 .

It is not a de Polignac number, because 1000075105 - 2¹ = 1000075103 is a prime.

It is a super-2 number, since 2×1000075105² = 2000300431281522050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000075103) 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, 100007506 + ... + 100007515.

It is an arithmetic number, because the mean of its divisors is an integer number (300022533).

Almost surely, 2^1000075105 is an apocalyptic number.

It is an amenable number.

1000075105 is a deficient number, since it is larger than the sum of its proper divisors (200015027).

1000075105 is an equidigital number, since it uses as much as digits as its factorization.

1000075105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200015026.

The product of its (nonzero) digits is 175, while the sum is 19.

The square root of 1000075105 is about 31623.9640937059. The cubic root of 1000075105 is about 1000.0250343733.

Adding to 1000075105 its reverse (5015700001), we get a palindrome (6015775106).

The spelling of 1000075105 in words is "one billion, seventy-five thousand, one hundred five".