137329809 has 8 divisors (see below), whose sum is σ = 183264672. Its totient is φ = 91474080.

The previous prime is 137329781. The next prime is 137329811. The reversal of 137329809 is 908923731.

137329809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 137329809 - 2¹¹ = 137327761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137329879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15607 + ... + 22764.

It is an arithmetic number, because the mean of its divisors is an integer number (22908084).

Almost surely, 2^137329809 is an apocalyptic number.

It is an amenable number.

137329809 is a deficient number, since it is larger than the sum of its proper divisors (45934863).

137329809 is a wasteful number, since it uses less digits than its factorization.

137329809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39567.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 137329809 is about 11718.7801839611. The cubic root of 137329809 is about 515.9270185527.

The spelling of 137329809 in words is "one hundred thirty-seven million, three hundred twenty-nine thousand, eight hundred nine".