135505514321154 has 24 divisors (see below), whose sum is σ = 293662052927100. Its totient is φ = 45158232174048.

The previous prime is 135505514321123. The next prime is 135505514321171. The reversal of 135505514321154 is 451123415505531.

135505514321154 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 0 + 551 + 4 + 32 + 11 + 54 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 122139741339225 + 13365772981929 = 11051685^2 + 3655923^2 .

It is a super-2 number, since 2×135505514321154² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 855968629 + ... + 856126920.

Almost surely, 2^{135505514321154} is an apocalyptic number.

135505514321154 is an abundant number, since it is smaller than the sum of its proper divisors (158156538605946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135505514321154 is a wasteful number, since it uses less digits than its factorization.

135505514321154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712099954 (or 1712099951 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 45.

Adding to 135505514321154 its reverse (451123415505531), we get a palindrome (586628929826685).

The spelling of 135505514321154 in words is "one hundred thirty-five trillion, five hundred five billion, five hundred fourteen million, three hundred twenty-one thousand, one hundred fifty-four".