32542009 has 2 divisors, whose sum is σ = 32542010. Its totient is φ = 32542008.

The previous prime is 32541991. The next prime is 32542067. The reversal of 32542009 is 90024523.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32319225 + 222784 = 5685^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 32542009 - 2⁷ = 32541881 is a prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (32542109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16271004 + 16271005.

It is an arithmetic number, because the mean of its divisors is an integer number (16271005).

Almost surely, 2^32542009 is an apocalyptic number.

It is an amenable number.

32542009 is a deficient number, since it is larger than the sum of its proper divisors (1).

32542009 is an equidigital number, since it uses as much as digits as its factorization.

32542009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 32542009 is about 5704.5603686875. The cubic root of 32542009 is about 319.2626545236.

It can be divided in two parts, 325 and 42009, that multiplied together give a triangular number (13652925 = T₅₂₂₅).

The spelling of 32542009 in words is "thirty-two million, five hundred forty-two thousand, nine".