135273610761531 has 32 divisors (see below), whose sum is σ = 204241197323520. Its totient is φ = 78886811337600.

The previous prime is 135273610761449. The next prime is 135273610761629. The reversal of 135273610761531 is 135167016372531.

It is not a de Polignac number, because 135273610761531 - 2¹⁰ = 135273610760507 is a prime.

It is a super-2 number, since 2×135273610761531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135273610761031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240934165 + ... + 241494966.

It is an arithmetic number, because the mean of its divisors is an integer number (6382537416360).

Almost surely, 2^{135273610761531} is an apocalyptic number.

135273610761531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135273610761531 is a deficient number, since it is larger than the sum of its proper divisors (68967586561989).

135273610761531 is a wasteful number, since it uses less digits than its factorization.

135273610761531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482429467.

The product of its (nonzero) digits is 2381400, while the sum is 51.

The spelling of 135273610761531 in words is "one hundred thirty-five trillion, two hundred seventy-three billion, six hundred ten million, seven hundred sixty-one thousand, five hundred thirty-one".