34131905 has 4 divisors (see below), whose sum is σ = 40958292. Its totient is φ = 27305520.

The previous prime is 34131859. The next prime is 34131907. The reversal of 34131905 is 50913143.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7268416 + 26863489 = 2696^2 + 5183^2 .

It is not a de Polignac number, because 34131905 - 2¹⁰ = 34130881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34131907) 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 in 3 ways as a sum of consecutive naturals, for example, 3413186 + ... + 3413195.

It is an arithmetic number, because the mean of its divisors is an integer number (10239573).

Almost surely, 2^34131905 is an apocalyptic number.

It is an amenable number.

34131905 is a deficient number, since it is larger than the sum of its proper divisors (6826387).

34131905 is an equidigital number, since it uses as much as digits as its factorization.

34131905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826386.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 34131905 is about 5842.2517063201. The cubic root of 34131905 is about 324.3795816738.

The spelling of 34131905 in words is "thirty-four million, one hundred thirty-one thousand, nine hundred five".