135264280181 has 4 divisors (see below), whose sum is σ = 135298074912. Its totient is φ = 135230485452.

The previous prime is 135264280169. The next prime is 135264280201. The reversal of 135264280181 is 181082462531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135264280181 - 2⁶ = 135264280117 is a prime.

It is a super-2 number, since 2×135264280181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135264280121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16891361 + ... + 16899366.

It is an arithmetic number, because the mean of its divisors is an integer number (33824518728).

Almost surely, 2^135264280181 is an apocalyptic number.

It is an amenable number.

135264280181 is a deficient number, since it is larger than the sum of its proper divisors (33794731).

135264280181 is an equidigital number, since it uses as much as digits as its factorization.

135264280181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33794730.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 135264280181 in words is "one hundred thirty-five billion, two hundred sixty-four million, two hundred eighty thousand, one hundred eighty-one".