135505455145 has 4 divisors (see below), whose sum is σ = 162606546180. Its totient is φ = 108404364112.

The previous prime is 135505455143. The next prime is 135505455277. The reversal of 135505455145 is 541554505531.

It is a happy number.

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 72843850816 + 62661604329 = 269896^2 + 250323^2 .

It is a cyclic number.

It is not a de Polignac number, because 135505455145 - 2¹ = 135505455143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135505455143) 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, 13550545510 + ... + 13550545519.

It is an arithmetic number, because the mean of its divisors is an integer number (40651636545).

Almost surely, 2^135505455145 is an apocalyptic number.

It is an amenable number.

135505455145 is a deficient number, since it is larger than the sum of its proper divisors (27101091035).

135505455145 is an equidigital number, since it uses as much as digits as its factorization.

135505455145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27101091034.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 135505455145 in words is "one hundred thirty-five billion, five hundred five million, four hundred fifty-five thousand, one hundred forty-five".