32305139 has 2 divisors, whose sum is σ = 32305140. Its totient is φ = 32305138.

The previous prime is 32305127. The next prime is 32305183. The reversal of 32305139 is 93150323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32305139 - 2⁴ = 32305123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32305109) 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, 16152569 + 16152570.

It is an arithmetic number, because the mean of its divisors is an integer number (16152570).

Almost surely, 2^32305139 is an apocalyptic number.

32305139 is a deficient number, since it is larger than the sum of its proper divisors (1).

32305139 is an equidigital number, since it uses as much as digits as its factorization.

32305139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 32305139 is about 5683.7609907525. The cubic root of 32305139 is about 318.4861405265.

The spelling of 32305139 in words is "thirty-two million, three hundred five thousand, one hundred thirty-nine".