34011521 has 2 divisors, whose sum is σ = 34011522. Its totient is φ = 34011520.

The previous prime is 34011511. The next prime is 34011541. The reversal of 34011521 is 12511043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29866225 + 4145296 = 5465^2 + 2036^2 .

It is an emirp because it is prime and its reverse (12511043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34011521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34011521.

It is not a weakly prime, because it can be changed into another prime (34011511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17005760 + 17005761.

It is an arithmetic number, because the mean of its divisors is an integer number (17005761).

Almost surely, 2^34011521 is an apocalyptic number.

It is an amenable number.

34011521 is a deficient number, since it is larger than the sum of its proper divisors (1).

34011521 is an equidigital number, since it uses as much as digits as its factorization.

34011521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 34011521 is about 5831.9397287695. The cubic root of 34011521 is about 323.9977677284.

Adding to 34011521 its reverse (12511043), we get a palindrome (46522564).

The spelling of 34011521 in words is "thirty-four million, eleven thousand, five hundred twenty-one".