135541653761 has 8 divisors (see below), whose sum is σ = 135959143944. Its totient is φ = 135124254720.

The previous prime is 135541653749. The next prime is 135541653787. The reversal of 135541653761 is 167356145531.

It can be written as a sum of positive squares in 4 ways, for example, as 1900960000 + 133640693761 = 43600^2 + 365569^2 .

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 135541653761 - 2⁶ = 135541653697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135541653721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4081721 + ... + 4114793.

It is an arithmetic number, because the mean of its divisors is an integer number (16994892993).

Almost surely, 2^135541653761 is an apocalyptic number.

It is an amenable number.

135541653761 is a deficient number, since it is larger than the sum of its proper divisors (417490183).

135541653761 is a wasteful number, since it uses less digits than its factorization.

135541653761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45571.

The product of its digits is 1134000, while the sum is 47.

The spelling of 135541653761 in words is "one hundred thirty-five billion, five hundred forty-one million, six hundred fifty-three thousand, seven hundred sixty-one".