34152121 has 2 divisors, whose sum is σ = 34152122. Its totient is φ = 34152120.

The previous prime is 34152119. The next prime is 34152149. The reversal of 34152121 is 12125143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33767721 + 384400 = 5811^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 34152121 - 2¹ = 34152119 is a prime.

Together with 34152119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (34152721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17076060 + 17076061.

It is an arithmetic number, because the mean of its divisors is an integer number (17076061).

Almost surely, 2^34152121 is an apocalyptic number.

It is an amenable number.

34152121 is a deficient number, since it is larger than the sum of its proper divisors (1).

34152121 is an equidigital number, since it uses as much as digits as its factorization.

34152121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 19.

The square root of 34152121 is about 5843.9816050361. The cubic root of 34152121 is about 324.4436113392.

Adding to 34152121 its reverse (12125143), we get a palindrome (46277264).

The spelling of 34152121 in words is "thirty-four million, one hundred fifty-two thousand, one hundred twenty-one".