100108901 has 2 divisors, whose sum is σ = 100108902. Its totient is φ = 100108900.

The previous prime is 100108837. The next prime is 100108909. The reversal of 100108901 is 109801001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59136100 + 40972801 = 7690^2 + 6401^2 .

It is a cyclic number.

It is not a de Polignac number, because 100108901 - 2⁶ = 100108837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100108909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50054450 + 50054451.

It is an arithmetic number, because the mean of its divisors is an integer number (50054451).

Almost surely, 2^100108901 is an apocalyptic number.

It is an amenable number.

100108901 is a deficient number, since it is larger than the sum of its proper divisors (1).

100108901 is an equidigital number, since it uses as much as digits as its factorization.

100108901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 100108901 is about 10005.4435683782. The cubic root of 100108901 is about 464.3273134572.

Adding to 100108901 its reverse (109801001), we get a palindrome (209909902).

The spelling of 100108901 in words is "one hundred million, one hundred eight thousand, nine hundred one".