34130209 has 4 divisors (see below), whose sum is σ = 34170004. Its totient is φ = 34090416.

The previous prime is 34130191. The next prime is 34130219. The reversal of 34130209 is 90203143.

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 15880225 + 18249984 = 3985^2 + 4272^2 .

It is a cyclic number.

It is not a de Polignac number, because 34130209 - 2⁵ = 34130177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34130209.

It is not an unprimeable number, because it can be changed into a prime (34130219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18582 + ... + 20335.

It is an arithmetic number, because the mean of its divisors is an integer number (8542501).

Almost surely, 2^34130209 is an apocalyptic number.

It is an amenable number.

34130209 is a deficient number, since it is larger than the sum of its proper divisors (39795).

34130209 is an equidigital number, since it uses as much as digits as its factorization.

34130209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39794.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 34130209 is about 5842.1065550022. The cubic root of 34130209 is about 324.3742088232.

The spelling of 34130209 in words is "thirty-four million, one hundred thirty thousand, two hundred nine".