34509121 has 2 divisors, whose sum is σ = 34509122. Its totient is φ = 34509120.

The previous prime is 34509119. The next prime is 34509179. The reversal of 34509121 is 12190543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23386896 + 11122225 = 4836^2 + 3335^2 .

It is a cyclic number.

It is not a de Polignac number, because 34509121 - 2¹ = 34509119 is a prime.

Together with 34509119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (34509191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17254560 + 17254561.

It is an arithmetic number, because the mean of its divisors is an integer number (17254561).

Almost surely, 2^34509121 is an apocalyptic number.

It is an amenable number.

34509121 is a deficient number, since it is larger than the sum of its proper divisors (1).

34509121 is an equidigital number, since it uses as much as digits as its factorization.

34509121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 34509121 is about 5874.4464420063. The cubic root of 34509121 is about 325.5701895901.

Adding to 34509121 its reverse (12190543), we get a palindrome (46699664).

The spelling of 34509121 in words is "thirty-four million, five hundred nine thousand, one hundred twenty-one".