135451648 has 88 divisors (see below), whose sum is σ = 297126144. Its totient is φ = 61440000.

The previous prime is 135451637. The next prime is 135451649. The reversal of 135451648 is 846154531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135451649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539523 + ... + 539773.

Almost surely, 2^135451648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135451648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148563072).

135451648 is an abundant number, since it is smaller than the sum of its proper divisors (161674496).

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

135451648 is a wasteful number, since it uses less digits than its factorization.

135451648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 301 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 135451648 is about 11638.3696452725. The cubic root of 135451648 is about 513.5642266340.

The spelling of 135451648 in words is "one hundred thirty-five million, four hundred fifty-one thousand, six hundred forty-eight".