2100505097 has 2 divisors, whose sum is σ = 2100505098. Its totient is φ = 2100505096.

The previous prime is 2100505093. The next prime is 2100505189. The reversal of 2100505097 is 7905050012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1995319561 + 105185536 = 44669^2 + 10256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100505097 - 2² = 2100505093 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100505093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050252548 + 1050252549.

It is an arithmetic number, because the mean of its divisors is an integer number (1050252549).

Almost surely, 2^2100505097 is an apocalyptic number.

It is an amenable number.

2100505097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100505097 is an equidigital number, since it uses as much as digits as its factorization.

2100505097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2100505097 is about 45831.2676783001. The cubic root of 2100505097 is about 1280.6818260738.

The spelling of 2100505097 in words is "two billion, one hundred million, five hundred five thousand, ninety-seven".