2115505097 has 2 divisors, whose sum is σ = 2115505098. Its totient is φ = 2115505096.

The previous prime is 2115504997. The next prime is 2115505127. The reversal of 2115505097 is 7905055112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1993711801 + 121793296 = 44651^2 + 11036^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115505097 - 2¹² = 2115501001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2115505397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057752548 + 1057752549.

It is an arithmetic number, because the mean of its divisors is an integer number (1057752549).

Almost surely, 2^2115505097 is an apocalyptic number.

It is an amenable number.

2115505097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115505097 is an equidigital number, since it uses as much as digits as its factorization.

2115505097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 35.

The square root of 2115505097 is about 45994.6203049878. The cubic root of 2115505097 is about 1283.7231073250.

The spelling of 2115505097 in words is "two billion, one hundred fifteen million, five hundred five thousand, ninety-seven".