135848549873 has 8 divisors (see below), whose sum is σ = 147727199592. Its totient is φ = 124401851136.

The previous prime is 135848549869. The next prime is 135848549909. The reversal of 135848549873 is 378945848531.

It can be written as a sum of positive squares in 4 ways, for example, as 75532628224 + 60315921649 = 274832^2 + 245593^2 .

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 135848549873 - 2² = 135848549869 is a prime.

It is a super-2 number, since 2×135848549873² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135848549833) 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, 107987090 + ... + 107988347.

It is an arithmetic number, because the mean of its divisors is an integer number (18465899949).

Almost surely, 2^135848549873 is an apocalyptic number.

It is an amenable number.

135848549873 is a deficient number, since it is larger than the sum of its proper divisors (11878649719).

135848549873 is a wasteful number, since it uses less digits than its factorization.

135848549873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215975491.

The product of its digits is 116121600, while the sum is 65.

The spelling of 135848549873 in words is "one hundred thirty-five billion, eight hundred forty-eight million, five hundred forty-nine thousand, eight hundred seventy-three".