1358125009 has 2 divisors, whose sum is σ = 1358125010. Its totient is φ = 1358125008.

The previous prime is 1358124979. The next prime is 1358125039. The reversal of 1358125009 is 9005218531.

It is a balanced prime because it is at equal distance from previous prime (1358124979) and next prime (1358125039).

It can be written as a sum of positive squares in only one way, i.e., 1113890625 + 244234384 = 33375^2 + 15628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1358125009 - 2¹³ = 1358116817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1358125039) 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, 679062504 + 679062505.

It is an arithmetic number, because the mean of its divisors is an integer number (679062505).

Almost surely, 2^1358125009 is an apocalyptic number.

It is an amenable number.

1358125009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358125009 is an equidigital number, since it uses as much as digits as its factorization.

1358125009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1358125009 is about 36852.7476451892. The cubic root of 1358125009 is about 1107.4222598626.

The spelling of 1358125009 in words is "one billion, three hundred fifty-eight million, one hundred twenty-five thousand, nine".