100995645 has 32 divisors (see below), whose sum is σ = 170698752. Its totient is φ = 50887232.

The previous prime is 100995619. The next prime is 100995649. The reversal of 100995645 is 546599001.

It is a cyclic number.

It is not a de Polignac number, because 100995645 - 2⁹ = 100995133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100995649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26872 + ... + 30398.

It is an arithmetic number, because the mean of its divisors is an integer number (5334336).

Almost surely, 2^100995645 is an apocalyptic number.

100995645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100995645 is a deficient number, since it is larger than the sum of its proper divisors (69703107).

100995645 is a wasteful number, since it uses less digits than its factorization.

100995645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 100995645 is about 10049.6589494370. The cubic root of 100995645 is about 465.6942571936.

The spelling of 100995645 in words is "one hundred million, nine hundred ninety-five thousand, six hundred forty-five".