100001329 has 2 divisors, whose sum is σ = 100001330. Its totient is φ = 100001328.

The previous prime is 100001303. The next prime is 100001333. The reversal of 100001329 is 923100001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98903025 + 1098304 = 9945^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 100001329 - 2¹⁹ = 99477041 is a prime.

It is not a weakly prime, because it can be changed into another prime (100001399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000664 + 50000665.

It is an arithmetic number, because the mean of its divisors is an integer number (50000665).

Almost surely, 2^100001329 is an apocalyptic number.

It is an amenable number.

100001329 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001329 is an equidigital number, since it uses as much as digits as its factorization.

100001329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 100001329 is about 10000.0664497792. The cubic root of 100001329 is about 464.1609395760.

The spelling of 100001329 in words is "one hundred million, one thousand, three hundred twenty-nine".