1995048449 has 2 divisors, whose sum is σ = 1995048450. Its totient is φ = 1995048448.

The previous prime is 1995048401. The next prime is 1995048487. The reversal of 1995048449 is 9448405991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072104049 + 922944400 = 32743^2 + 30380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1995048449 - 2⁸ = 1995048193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1995048449.

It is not a weakly prime, because it can be changed into another prime (1995048499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997524224 + 997524225.

It is an arithmetic number, because the mean of its divisors is an integer number (997524225).

Almost surely, 2^1995048449 is an apocalyptic number.

It is an amenable number.

1995048449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995048449 is an equidigital number, since it uses as much as digits as its factorization.

1995048449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 1995048449 is about 44665.9652196166. The cubic root of 1995048449 is about 1258.8804300857.

The spelling of 1995048449 in words is "one billion, nine hundred ninety-five million, forty-eight thousand, four hundred forty-nine".