34154221 has 2 divisors, whose sum is σ = 34154222. Its totient is φ = 34154220.

The previous prime is 34154213. The next prime is 34154233. The reversal of 34154221 is 12245143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 15100996 = 4365^2 + 3886^2 .

It is an emirp because it is prime and its reverse (12245143) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34154221 - 2³ = 34154213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34154192 and 34154201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34154201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17077110 + 17077111.

It is an arithmetic number, because the mean of its divisors is an integer number (17077111).

Almost surely, 2^34154221 is an apocalyptic number.

It is an amenable number.

34154221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34154221 is an equidigital number, since it uses as much as digits as its factorization.

34154221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 34154221 is about 5844.1612742976. The cubic root of 34154221 is about 324.4502611714.

Adding to 34154221 its reverse (12245143), we get a palindrome (46399364).

The spelling of 34154221 in words is "thirty-four million, one hundred fifty-four thousand, two hundred twenty-one".