1001100165 has 32 divisors (see below), whose sum is σ = 1826447616. Its totient is φ = 463856640.

The previous prime is 1001100151. The next prime is 1001100179. The reversal of 1001100165 is 5610011001.

1001100165 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1001100151) and next prime (1001100179).

It is not a de Polignac number, because 1001100165 - 2⁹ = 1001099653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 147681 + ... + 154310.

It is an arithmetic number, because the mean of its divisors is an integer number (57076488).

Almost surely, 2^1001100165 is an apocalyptic number.

1001100165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1001100165 is a deficient number, since it is larger than the sum of its proper divisors (825347451).

1001100165 is a wasteful number, since it uses less digits than its factorization.

1001100165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302029.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1001100165 is about 31640.1669559438. The cubic root of 1001100165 is about 1000.3665872640.

Adding to 1001100165 its reverse (5610011001), we get a palindrome (6611111166).

The spelling of 1001100165 in words is "one billion, one million, one hundred thousand, one hundred sixty-five".