2061125449 has 2 divisors, whose sum is σ = 2061125450. Its totient is φ = 2061125448.

The previous prime is 2061125413. The next prime is 2061125621. The reversal of 2061125449 is 9445211602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1393678224 + 667447225 = 37332^2 + 25835^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061125449 - 2⁹ = 2061124937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2061135449) 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, 1030562724 + 1030562725.

It is an arithmetic number, because the mean of its divisors is an integer number (1030562725).

Almost surely, 2^2061125449 is an apocalyptic number.

It is an amenable number.

2061125449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061125449 is an equidigital number, since it uses as much as digits as its factorization.

2061125449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2061125449 is about 45399.6194807842. The cubic root of 2061125449 is about 1272.6280028664.

The spelling of 2061125449 in words is "two billion, sixty-one million, one hundred twenty-five thousand, four hundred forty-nine".