134206609 has 2 divisors, whose sum is σ = 134206610. Its totient is φ = 134206608.

The previous prime is 134206607. The next prime is 134206637. The reversal of 134206609 is 906602431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 14085009 = 10960^2 + 3753^2 .

It is a cyclic number.

It is not a de Polignac number, because 134206609 - 2¹ = 134206607 is a prime.

It is a super-2 number, since 2×134206609² = 36022827798557762, which contains 22 as substring.

Together with 134206607, it forms a pair of twin primes.

It is a nialpdrome in base 8.

It is not a weakly prime, because it can be changed into another prime (134206607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67103304 + 67103305.

It is an arithmetic number, because the mean of its divisors is an integer number (67103305).

Almost surely, 2^134206609 is an apocalyptic number.

It is an amenable number.

134206609 is a deficient number, since it is larger than the sum of its proper divisors (1).

134206609 is an equidigital number, since it uses as much as digits as its factorization.

134206609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 134206609 is about 11584.7576150734. The cubic root of 134206609 is about 511.9858610699.

The spelling of 134206609 in words is "one hundred thirty-four million, two hundred six thousand, six hundred nine".