34128811 has 2 divisors, whose sum is σ = 34128812. Its totient is φ = 34128810.

The previous prime is 34128797. The next prime is 34128839. The reversal of 34128811 is 11882143.

It is an a-pointer prime, because the next prime (34128839) can be obtained adding 34128811 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34128811 - 2²³ = 25740203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34128811.

It is not a weakly prime, because it can be changed into another prime (34128841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17064405 + 17064406.

It is an arithmetic number, because the mean of its divisors is an integer number (17064406).

Almost surely, 2^34128811 is an apocalyptic number.

34128811 is a deficient number, since it is larger than the sum of its proper divisors (1).

34128811 is an equidigital number, since it uses as much as digits as its factorization.

34128811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 28.

The square root of 34128811 is about 5841.9869051548. The cubic root of 34128811 is about 324.3697798891.

The spelling of 34128811 in words is "thirty-four million, one hundred twenty-eight thousand, eight hundred eleven".