100307189 has 4 divisors (see below), whose sum is σ = 100357740. Its totient is φ = 100256640.

The previous prime is 100307159. The next prime is 100307203. The reversal of 100307189 is 981703001.

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 66178225 + 34128964 = 8135^2 + 5842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100307189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100307149) 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, 22172 + ... + 26309.

It is an arithmetic number, because the mean of its divisors is an integer number (25089435).

Almost surely, 2^100307189 is an apocalyptic number.

It is an amenable number.

100307189 is a deficient number, since it is larger than the sum of its proper divisors (50551).

100307189 is an equidigital number, since it uses as much as digits as its factorization.

100307189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50550.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 100307189 is about 10015.3476724475. The cubic root of 100307189 is about 464.6336791965.

The spelling of 100307189 in words is "one hundred million, three hundred seven thousand, one hundred eighty-nine".