135645400 has 48 divisors (see below), whose sum is σ = 344051640. Its totient is φ = 49324800.

The previous prime is 135645379. The next prime is 135645401. The reversal of 135645400 is 4546531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135645401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28629 + ... + 33028.

Almost surely, 2^135645400 is an apocalyptic number.

135645400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135645400 is an abundant number, since it is smaller than the sum of its proper divisors (208406240).

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

135645400 is a wasteful number, since it uses less digits than its factorization.

135645400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61684 (or 61675 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 135645400 is about 11646.6905170525. The cubic root of 135645400 is about 513.8089798753.

The spelling of 135645400 in words is "one hundred thirty-five million, six hundred forty-five thousand, four hundred".