134209497 has 8 divisors (see below), whose sum is σ = 179010720. Its totient is φ = 89440640.

The previous prime is 134209489. The next prime is 134209499. The reversal of 134209497 is 794902431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134209497 - 2³ = 134209489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134209499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4297 + ... + 16937.

It is an arithmetic number, because the mean of its divisors is an integer number (22376340).

Almost surely, 2^134209497 is an apocalyptic number.

It is an amenable number.

134209497 is a deficient number, since it is larger than the sum of its proper divisors (44801223).

134209497 is a wasteful number, since it uses less digits than its factorization.

134209497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16183.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 134209497 is about 11584.8822609468. The cubic root of 134209497 is about 511.9895335283.

Adding to 134209497 its sum of digits (39), we get a triangular number (134209536 = T₁₆₃₈₃).

The spelling of 134209497 in words is "one hundred thirty-four million, two hundred nine thousand, four hundred ninety-seven".