34755221 has 2 divisors, whose sum is σ = 34755222. Its totient is φ = 34755220.

The previous prime is 34755209. The next prime is 34755239. The reversal of 34755221 is 12255743.

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., 32547025 + 2208196 = 5705^2 + 1486^2 .

It is an emirp because it is prime and its reverse (12255743) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34755221 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34755241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17377610 + 17377611.

It is an arithmetic number, because the mean of its divisors is an integer number (17377611).

Almost surely, 2^34755221 is an apocalyptic number.

It is an amenable number.

34755221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34755221 is an equidigital number, since it uses as much as digits as its factorization.

34755221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 34755221 is about 5895.3558840837. The cubic root of 34755221 is about 326.3422860529.

The spelling of 34755221 in words is "thirty-four million, seven hundred fifty-five thousand, two hundred twenty-one".