135545400420 has 24 divisors (see below), whose sum is σ = 379527121344. Its totient is φ = 36145440096.

The previous prime is 135545400407. The next prime is 135545400439. The reversal of 135545400420 is 24004545531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129544944 + ... + 1129545063.

It is an arithmetic number, because the mean of its divisors is an integer number (15813630056).

Almost surely, 2^135545400420 is an apocalyptic number.

135545400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135545400420 is an abundant number, since it is smaller than the sum of its proper divisors (243981720924).

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

135545400420 is a wasteful number, since it uses less digits than its factorization.

135545400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259090019 (or 2259090017 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 135545400420 its reverse (24004545531), we get a palindrome (159549945951).

The spelling of 135545400420 in words is "one hundred thirty-five billion, five hundred forty-five million, four hundred thousand, four hundred twenty".