2197126747 has 2 divisors, whose sum is σ = 2197126748. Its totient is φ = 2197126746.

The previous prime is 2197126717. The next prime is 2197126793. The reversal of 2197126747 is 7476217912.

It is an a-pointer prime, because the next prime (2197126793) can be obtained adding 2197126747 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2197126747 - 2²⁷ = 2062909019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2197126697 and 2197126706.

It is not a weakly prime, because it can be changed into another prime (2197126717) 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, 1098563373 + 1098563374.

It is an arithmetic number, because the mean of its divisors is an integer number (1098563374).

Almost surely, 2^2197126747 is an apocalyptic number.

2197126747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197126747 is an equidigital number, since it uses as much as digits as its factorization.

2197126747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 46.

The square root of 2197126747 is about 46873.5186112585. The cubic root of 2197126747 is about 1300.0249989276.

The spelling of 2197126747 in words is "two billion, one hundred ninety-seven million, one hundred twenty-six thousand, seven hundred forty-seven".