100534409 has 2 divisors, whose sum is σ = 100534410. Its totient is φ = 100534408.

The previous prime is 100534351. The next prime is 100534417. The reversal of 100534409 is 904435001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82446400 + 18088009 = 9080^2 + 4253^2 .

It is an emirp because it is prime and its reverse (904435001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100534409 - 2⁸ = 100534153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100534429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50267204 + 50267205.

It is an arithmetic number, because the mean of its divisors is an integer number (50267205).

Almost surely, 2^100534409 is an apocalyptic number.

It is an amenable number.

100534409 is a deficient number, since it is larger than the sum of its proper divisors (1).

100534409 is an equidigital number, since it uses as much as digits as its factorization.

100534409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 100534409 is about 10026.6848459498. The cubic root of 100534409 is about 464.9842504397.

The spelling of 100534409 in words is "one hundred million, five hundred thirty-four thousand, four hundred nine".