135321773049 has 24 divisors (see below), whose sum is σ = 207135318312. Its totient is φ = 84836966400.

The previous prime is 135321773033. The next prime is 135321773051. The reversal of 135321773049 is 940377123531.

135321773049 is a `hidden beast` number, since 1 + 3 + 532 + 1 + 7 + 73 + 0 + 49 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3811827600 + 131509945449 = 61740^2 + 362643^2 .

It is not a de Polignac number, because 135321773049 - 2⁴ = 135321773033 is a prime.

It is a super-2 number, since 2×135321773049² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135321772995 and 135321773013.

It is not an unprimeable number, because it can be changed into a prime (135321773099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184464 + ... + 551969.

It is an arithmetic number, because the mean of its divisors is an integer number (8630638263).

Almost surely, 2^135321773049 is an apocalyptic number.

It is an amenable number.

135321773049 is a deficient number, since it is larger than the sum of its proper divisors (71813545263).

135321773049 is a wasteful number, since it uses less digits than its factorization.

135321773049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737657 (or 737654 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 135321773049 in words is "one hundred thirty-five billion, three hundred twenty-one million, seven hundred seventy-three thousand, forty-nine".