100555097 has 2 divisors, whose sum is σ = 100555098. Its totient is φ = 100555096.

The previous prime is 100555073. The next prime is 100555177. The reversal of 100555097 is 790555001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96510976 + 4044121 = 9824^2 + 2011^2 .

It is a cyclic number.

It is not a de Polignac number, because 100555097 - 2⁸ = 100554841 is a prime.

It is a super-2 number, since 2×100555097² = 20222655065358818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100555067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277548 + 50277549.

It is an arithmetic number, because the mean of its divisors is an integer number (50277549).

Almost surely, 2^100555097 is an apocalyptic number.

It is an amenable number.

100555097 is a deficient number, since it is larger than the sum of its proper divisors (1).

100555097 is an equidigital number, since it uses as much as digits as its factorization.

100555097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875, while the sum is 32.

The square root of 100555097 is about 10027.7164399478. The cubic root of 100555097 is about 465.0161431171.

The spelling of 100555097 in words is "one hundred million, five hundred fifty-five thousand, ninety-seven".