100227845 has 8 divisors (see below), whose sum is σ = 120939000. Its totient is φ = 79738560.

The previous prime is 100227833. The next prime is 100227847. The reversal of 100227845 is 548722001.

It can be written as a sum of positive squares in 4 ways, for example, as 5885476 + 94342369 = 2426^2 + 9713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-100227845 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100227847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54470 + ... + 56279.

It is an arithmetic number, because the mean of its divisors is an integer number (15117375).

Almost surely, 2^100227845 is an apocalyptic number.

It is an amenable number.

100227845 is a deficient number, since it is larger than the sum of its proper divisors (20711155).

100227845 is a wasteful number, since it uses less digits than its factorization.

100227845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110935.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 100227845 is about 10011.3857682141. The cubic root of 100227845 is about 464.5111369018.

Adding to 100227845 its reverse (548722001), we get a palindrome (648949846).

The spelling of 100227845 in words is "one hundred million, two hundred twenty-seven thousand, eight hundred forty-five".