195151799 has 2 divisors, whose sum is σ = 195151800. Its totient is φ = 195151798.

The previous prime is 195151787. The next prime is 195151811. The reversal of 195151799 is 997151591.

It is a balanced prime because it is at equal distance from previous prime (195151787) and next prime (195151811).

It is a cyclic number.

It is not a de Polignac number, because 195151799 - 2¹⁶ = 195086263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195151709) 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, 97575899 + 97575900.

It is an arithmetic number, because the mean of its divisors is an integer number (97575900).

Almost surely, 2^195151799 is an apocalyptic number.

195151799 is a deficient number, since it is larger than the sum of its proper divisors (1).

195151799 is an equidigital number, since it uses as much as digits as its factorization.

195151799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127575, while the sum is 47.

The square root of 195151799 is about 13969.6742624873. The cubic root of 195151799 is about 580.0394335060.

The spelling of 195151799 in words is "one hundred ninety-five million, one hundred fifty-one thousand, seven hundred ninety-nine".