1230199757 has 2 divisors, whose sum is σ = 1230199758. Its totient is φ = 1230199756.

The previous prime is 1230199739. The next prime is 1230199777. The reversal of 1230199757 is 7579910321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155048196 + 75151561 = 33986^2 + 8669^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230199757 - 2⁶ = 1230199693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230199777) 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, 615099878 + 615099879.

It is an arithmetic number, because the mean of its divisors is an integer number (615099879).

Almost surely, 2^1230199757 is an apocalyptic number.

It is an amenable number.

1230199757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230199757 is an equidigital number, since it uses as much as digits as its factorization.

1230199757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 1230199757 is about 35074.2035832604. The cubic root of 1230199757 is about 1071.4992686903.

The spelling of 1230199757 in words is "one billion, two hundred thirty million, one hundred ninety-nine thousand, seven hundred fifty-seven".