135545412522225 has 48 divisors (see below), whose sum is σ = 224264090624000. Its totient is φ = 72238526395200.

The previous prime is 135545412522139. The next prime is 135545412522229. The reversal of 135545412522225 is 522225214545531.

It is a happy number.

It is not a de Polignac number, because 135545412522225 - 2⁷ = 135545412522097 is a prime.

It is a super-2 number, since 2×135545412522225² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135545412522229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1576084776 + ... + 1576170774.

Almost surely, 2^{135545412522225} is an apocalyptic number.

135545412522225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135545412522225 is a deficient number, since it is larger than the sum of its proper divisors (88718678101775).

135545412522225 is a wasteful number, since it uses less digits than its factorization.

135545412522225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100990 (or 100985 counting only the distinct ones).

The product of its digits is 4800000, while the sum is 48.

The spelling of 135545412522225 in words is "one hundred thirty-five trillion, five hundred forty-five billion, four hundred twelve million, five hundred twenty-two thousand, two hundred twenty-five".