100315289 has 4 divisors (see below), whose sum is σ = 100657956. Its totient is φ = 99972624.

The previous prime is 100315277. The next prime is 100315297. The reversal of 100315289 is 982513001.

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 77352025 + 22963264 = 8795^2 + 4792^2 .

It is a cyclic number.

It is not a de Polignac number, because 100315289 - 2¹² = 100311193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100315219) 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, 170894 + ... + 171479.

It is an arithmetic number, because the mean of its divisors is an integer number (25164489).

Almost surely, 2^100315289 is an apocalyptic number.

It is an amenable number.

100315289 is a deficient number, since it is larger than the sum of its proper divisors (342667).

100315289 is an equidigital number, since it uses as much as digits as its factorization.

100315289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342666.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 100315289 is about 10015.7520436560. The cubic root of 100315289 is about 464.6461855501.

The spelling of 100315289 in words is "one hundred million, three hundred fifteen thousand, two hundred eighty-nine".