100975685 has 4 divisors (see below), whose sum is σ = 121170828. Its totient is φ = 80780544.

The previous prime is 100975673. The next prime is 100975687. The reversal of 100975685 is 586579001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586579001 = 19 ⋅30872579.

It can be written as a sum of positive squares in 2 ways, for example, as 56806369 + 44169316 = 7537^2 + 6646^2 .

It is a cyclic number.

It is not a de Polignac number, because 100975685 - 2⁴ = 100975669 is a prime.

It is a super-2 number, since 2×100975685² = 20392177922438450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100975687) 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, 10097564 + ... + 10097573.

It is an arithmetic number, because the mean of its divisors is an integer number (30292707).

Almost surely, 2^100975685 is an apocalyptic number.

It is an amenable number.

100975685 is a deficient number, since it is larger than the sum of its proper divisors (20195143).

100975685 is an equidigital number, since it uses as much as digits as its factorization.

100975685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20195142.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 100975685 is about 10048.6658318406. The cubic root of 100975685 is about 465.6635764324.

The spelling of 100975685 in words is "one hundred million, nine hundred seventy-five thousand, six hundred eighty-five".