100134121 has 2 divisors, whose sum is σ = 100134122. Its totient is φ = 100134120.

The previous prime is 100134107. The next prime is 100134149. The reversal of 100134121 is 121431001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 12524521 = 9360^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 100134121 - 2⁷ = 100133993 is a prime.

It is not a weakly prime, because it can be changed into another prime (100134421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50067060 + 50067061.

It is an arithmetic number, because the mean of its divisors is an integer number (50067061).

Almost surely, 2^100134121 is an apocalyptic number.

It is an amenable number.

100134121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100134121 is an equidigital number, since it uses as much as digits as its factorization.

100134121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 100134121 is about 10006.7038029513. The cubic root of 100134121 is about 464.3663021702.

Adding to 100134121 its reverse (121431001), we get a palindrome (221565122).

The spelling of 100134121 in words is "one hundred million, one hundred thirty-four thousand, one hundred twenty-one".