134155306565 has 16 divisors (see below), whose sum is σ = 185219222400. Its totient is φ = 91374809280.

The previous prime is 134155306513. The next prime is 134155306567. The reversal of 134155306565 is 565603551431.

It is a happy number.

It is not a de Polignac number, because 134155306565 - 2¹² = 134155302469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134155306567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12857231 + ... + 12867660.

It is an arithmetic number, because the mean of its divisors is an integer number (11576201400).

Almost surely, 2^134155306565 is an apocalyptic number.

It is an amenable number.

134155306565 is a deficient number, since it is larger than the sum of its proper divisors (51063915835).

134155306565 is a wasteful number, since it uses less digits than its factorization.

134155306565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25725052.

The product of its (nonzero) digits is 810000, while the sum is 44.

Adding to 134155306565 its reverse (565603551431), we get a palindrome (699758857996).

The spelling of 134155306565 in words is "one hundred thirty-four billion, one hundred fifty-five million, three hundred six thousand, five hundred sixty-five".