34221751 has 2 divisors, whose sum is σ = 34221752. Its totient is φ = 34221750.

The previous prime is 34221709. The next prime is 34221763. The reversal of 34221751 is 15712243.

It is a happy number.

34221751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34221751 - 2¹⁹ = 33697463 is a prime.

It is a super-2 number, since 2×34221751² = 2342256483012002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34221251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17110875 + 17110876.

It is an arithmetic number, because the mean of its divisors is an integer number (17110876).

Almost surely, 2^34221751 is an apocalyptic number.

34221751 is a deficient number, since it is larger than the sum of its proper divisors (1).

34221751 is an equidigital number, since it uses as much as digits as its factorization.

34221751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 34221751 is about 5849.9359825557. The cubic root of 34221751 is about 324.6639556142.

Adding to 34221751 its reverse (15712243), we get a palindrome (49933994).

The spelling of 34221751 in words is "thirty-four million, two hundred twenty-one thousand, seven hundred fifty-one".