1258540799 has 2 divisors, whose sum is σ = 1258540800. Its totient is φ = 1258540798.

The previous prime is 1258540781. The next prime is 1258540807. The reversal of 1258540799 is 9970458521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1258540799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1258540709) 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, 629270399 + 629270400.

It is an arithmetic number, because the mean of its divisors is an integer number (629270400).

Almost surely, 2^1258540799 is an apocalyptic number.

1258540799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258540799 is an equidigital number, since it uses as much as digits as its factorization.

1258540799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 50.

The square root of 1258540799 is about 35475.9185786640. The cubic root of 1258540799 is about 1079.6651908558.

The spelling of 1258540799 in words is "one billion, two hundred fifty-eight million, five hundred forty thousand, seven hundred ninety-nine".