100534121 has 2 divisors, whose sum is σ = 100534122. Its totient is φ = 100534120.

The previous prime is 100534099. The next prime is 100534153. The reversal of 100534121 is 121435001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53816896 + 46717225 = 7336^2 + 6835^2 .

It is a cyclic number.

It is not a de Polignac number, because 100534121 - 2¹⁴ = 100517737 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100534121.

It is not a weakly prime, because it can be changed into another prime (100534321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50267060 + 50267061.

It is an arithmetic number, because the mean of its divisors is an integer number (50267061).

Almost surely, 2^100534121 is an apocalyptic number.

It is an amenable number.

100534121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100534121 is an equidigital number, since it uses as much as digits as its factorization.

100534121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100534121 is about 10026.6704842635. The cubic root of 100534121 is about 464.9838064272.

Adding to 100534121 its reverse (121435001), we get a palindrome (221969122).

The spelling of 100534121 in words is "one hundred million, five hundred thirty-four thousand, one hundred twenty-one".