100164445 has 4 divisors (see below), whose sum is σ = 120197340. Its totient is φ = 80131552.

The previous prime is 100164433. The next prime is 100164451. The reversal of 100164445 is 544461001.

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 47485881 + 52678564 = 6891^2 + 7258^2 .

It is a cyclic number.

It is not a de Polignac number, because 100164445 - 2⁵ = 100164413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10016440 + ... + 10016449.

It is an arithmetic number, because the mean of its divisors is an integer number (30049335).

Almost surely, 2^100164445 is an apocalyptic number.

It is an amenable number.

100164445 is a deficient number, since it is larger than the sum of its proper divisors (20032895).

100164445 is an equidigital number, since it uses as much as digits as its factorization.

100164445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20032894.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 100164445 is about 10008.2188725067. The cubic root of 100164445 is about 464.4131727154.

The spelling of 100164445 in words is "one hundred million, one hundred sixty-four thousand, four hundred forty-five".