100946645 has 4 divisors (see below), whose sum is σ = 121135980. Its totient is φ = 80757312.

The previous prime is 100946623. The next prime is 100946683. The reversal of 100946645 is 546649001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 87740689 = 3634^2 + 9367^2 .

It is a cyclic number.

It is not a de Polignac number, because 100946645 - 2²⁴ = 84169429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10094660 + ... + 10094669.

It is an arithmetic number, because the mean of its divisors is an integer number (30283995).

Almost surely, 2^100946645 is an apocalyptic number.

It is an amenable number.

100946645 is a deficient number, since it is larger than the sum of its proper divisors (20189335).

100946645 is an equidigital number, since it uses as much as digits as its factorization.

100946645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20189334.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 100946645 is about 10047.2207599913. The cubic root of 100946645 is about 465.6189314705.

The spelling of 100946645 in words is "one hundred million, nine hundred forty-six thousand, six hundred forty-five".