1525150009 has 2 divisors, whose sum is σ = 1525150010. Its totient is φ = 1525150008.

The previous prime is 1525149973. The next prime is 1525150031. The reversal of 1525150009 is 9000515251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 900000000 + 625150009 = 30000^2 + 25003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525150009 - 2²¹ = 1523052857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1525150069) 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, 762575004 + 762575005.

It is an arithmetic number, because the mean of its divisors is an integer number (762575005).

Almost surely, 2^1525150009 is an apocalyptic number.

It is an amenable number.

1525150009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525150009 is an equidigital number, since it uses as much as digits as its factorization.

1525150009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 1525150009 is about 39053.1690007354. The cubic root of 1525150009 is about 1151.0764989842.

The spelling of 1525150009 in words is "one billion, five hundred twenty-five million, one hundred fifty thousand, nine".