2134609 has 2 divisors, whose sum is σ = 2134610. Its totient is φ = 2134608.

The previous prime is 2134589. The next prime is 2134621. The reversal of 2134609 is 9064312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2073600 + 61009 = 1440^2 + 247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2134609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2134109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067304 + 1067305.

It is an arithmetic number, because the mean of its divisors is an integer number (1067305).

2^2134609 is an apocalyptic number.

It is an amenable number.

2134609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134609 is an equidigital number, since it uses as much as digits as its factorization.

2134609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2134609 is about 1461.0301160483. The cubic root of 2134609 is about 128.7575720560.

The spelling of 2134609 in words is "two million, one hundred thirty-four thousand, six hundred nine".