2115192797 has 2 divisors, whose sum is σ = 2115192798. Its totient is φ = 2115192796.

The previous prime is 2115192787. The next prime is 2115192817. The reversal of 2115192797 is 7972915112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2092971001 + 22221796 = 45749^2 + 4714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115192797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115192707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057596398 + 1057596399.

It is an arithmetic number, because the mean of its divisors is an integer number (1057596399).

Almost surely, 2^2115192797 is an apocalyptic number.

It is an amenable number.

2115192797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115192797 is an equidigital number, since it uses as much as digits as its factorization.

2115192797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 44.

The square root of 2115192797 is about 45991.2252174260. The cubic root of 2115192797 is about 1283.6599346330.

The spelling of 2115192797 in words is "two billion, one hundred fifteen million, one hundred ninety-two thousand, seven hundred ninety-seven".