135045701281 has 4 divisors (see below), whose sum is σ = 135179014932. Its totient is φ = 134912387632.

The previous prime is 135045701261. The next prime is 135045701299. The reversal of 135045701281 is 182107540531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25429086225 + 109616615056 = 159465^2 + 331084^2 .

It is a cyclic number.

It is not a de Polignac number, because 135045701281 - 2³¹ = 132898217633 is a prime.

It is a super-2 number, since 2×135045701281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135045701281.

It is not an unprimeable number, because it can be changed into a prime (135045701261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66655306 + ... + 66657331.

It is an arithmetic number, because the mean of its divisors is an integer number (33794753733).

Almost surely, 2^135045701281 is an apocalyptic number.

It is an amenable number.

135045701281 is a deficient number, since it is larger than the sum of its proper divisors (133313651).

135045701281 is a wasteful number, since it uses less digits than its factorization.

135045701281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133313650.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 135045701281 in words is "one hundred thirty-five billion, forty-five million, seven hundred one thousand, two hundred eighty-one".