34539521 has 2 divisors, whose sum is σ = 34539522. Its totient is φ = 34539520.

The previous prime is 34539499. The next prime is 34539523. The reversal of 34539521 is 12593543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33466225 + 1073296 = 5785^2 + 1036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34539521 is a prime.

Together with 34539523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34539523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17269760 + 17269761.

It is an arithmetic number, because the mean of its divisors is an integer number (17269761).

Almost surely, 2^34539521 is an apocalyptic number.

It is an amenable number.

34539521 is a deficient number, since it is larger than the sum of its proper divisors (1).

34539521 is an equidigital number, since it uses as much as digits as its factorization.

34539521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 34539521 is about 5877.0333502542. The cubic root of 34539521 is about 325.6657626697.

The spelling of 34539521 in words is "thirty-four million, five hundred thirty-nine thousand, five hundred twenty-one".