137808065 has 16 divisors (see below), whose sum is σ = 172896768. Its totient is φ = 105247296.

The previous prime is 137808059. The next prime is 137808067. The reversal of 137808065 is 560808731.

It is a cyclic number.

It is not a de Polignac number, because 137808065 - 2⁸ = 137807809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137808067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86264 + ... + 87846.

It is an arithmetic number, because the mean of its divisors is an integer number (10806048).

Almost surely, 2^137808065 is an apocalyptic number.

It is an amenable number.

137808065 is a deficient number, since it is larger than the sum of its proper divisors (35088703).

137808065 is a wasteful number, since it uses less digits than its factorization.

137808065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 137808065 is about 11739.1679858498. The cubic root of 137808065 is about 516.5252361183.

The spelling of 137808065 in words is "one hundred thirty-seven million, eight hundred eight thousand, sixty-five".