1000099965 has 16 divisors (see below), whose sum is σ = 1622699136. Its totient is φ = 525873600.

The previous prime is 1000099963. The next prime is 1000099967. The reversal of 1000099965 is 5699900001.

It is an interprime number because it is at equal distance from previous prime (1000099963) and next prime (1000099967).

It is not a de Polignac number, because 1000099965 - 2¹ = 1000099963 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000099963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468466 + ... + 470595.

It is an arithmetic number, because the mean of its divisors is an integer number (101418696).

Almost surely, 2^1000099965 is an apocalyptic number.

1000099965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000099965 is a deficient number, since it is larger than the sum of its proper divisors (622599171).

1000099965 is an equidigital number, since it uses as much as digits as its factorization.

1000099965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939140.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 1000099965 is about 31624.3571476165. The cubic root of 1000099965 is about 1000.0333205564.

Adding to 1000099965 its reverse (5699900001), we get a palindrome (6699999966).

It can be divided in two parts, 100009996 and 5, that added together give a palindrome (100010001).

The spelling of 1000099965 in words is "one billion, ninety-nine thousand, nine hundred sixty-five".