34145779 has 2 divisors, whose sum is σ = 34145780. Its totient is φ = 34145778.

The previous prime is 34145759. The next prime is 34145801. The reversal of 34145779 is 97754143.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34145779 - 2¹⁹ = 33621491 is a prime.

It is not a weakly prime, because it can be changed into another prime (34145759) 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, 17072889 + 17072890.

It is an arithmetic number, because the mean of its divisors is an integer number (17072890).

Almost surely, 2^34145779 is an apocalyptic number.

34145779 is a deficient number, since it is larger than the sum of its proper divisors (1).

34145779 is an equidigital number, since it uses as much as digits as its factorization.

34145779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 34145779 is about 5843.4389703325. The cubic root of 34145779 is about 324.4235271912.

The spelling of 34145779 in words is "thirty-four million, one hundred forty-five thousand, seven hundred seventy-nine".