100075665 has 16 divisors (see below), whose sum is σ = 165643200. Its totient is φ = 51532992.

The previous prime is 100075631. The next prime is 100075667. The reversal of 100075665 is 566570001.

It is not a de Polignac number, because 100075665 - 2⁷ = 100075537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100075667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114595 + ... + 115464.

It is an arithmetic number, because the mean of its divisors is an integer number (10352700).

Almost surely, 2^100075665 is an apocalyptic number.

100075665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100075665 is a deficient number, since it is larger than the sum of its proper divisors (65567535).

100075665 is a wasteful number, since it uses less digits than its factorization.

100075665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230096.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 100075665 is about 10003.7825346216. The cubic root of 100075665 is about 464.2759224534.

The spelling of 100075665 in words is "one hundred million, seventy-five thousand, six hundred sixty-five".