134251521065 has 8 divisors (see below), whose sum is σ = 168106252608. Its totient is φ = 102731598640.

The previous prime is 134251521017. The next prime is 134251521067. The reversal of 134251521065 is 560125152431.

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

It is not a de Polignac number, because 134251521065 - 2²² = 134247326761 is a prime.

It is a super-2 number, since 2×134251521065² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134251521067) 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, 583702151 + ... + 583702380.

It is an arithmetic number, because the mean of its divisors is an integer number (21013281576).

Almost surely, 2^134251521065 is an apocalyptic number.

It is an amenable number.

134251521065 is a deficient number, since it is larger than the sum of its proper divisors (33854731543).

134251521065 is a wasteful number, since it uses less digits than its factorization.

134251521065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167404559.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 134251521065 its reverse (560125152431), we get a palindrome (694376673496).

The spelling of 134251521065 in words is "one hundred thirty-four billion, two hundred fifty-one million, five hundred twenty-one thousand, sixty-five".