135081450 has 288 divisors, whose sum is σ = 455744640. Its totient is φ = 27993600.

The previous prime is 135081437. The next prime is 135081481. The reversal of 135081450 is 54180531.

135081450 is a `hidden beast` number, since 13 + 508 + 145 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2214420 + ... + 2214480.

Almost surely, 2^135081450 is an apocalyptic number.

135081450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135081450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227872320).

135081450 is an abundant number, since it is smaller than the sum of its proper divisors (320663190).

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

135081450 is a wasteful number, since it uses less digits than its factorization.

135081450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 135081450 is about 11622.4545600316. The cubic root of 135081450 is about 513.0959318104.

It can be divided in two parts, 135081 and 450, that added together give a palindrome (135531).

The spelling of 135081450 in words is "one hundred thirty-five million, eighty-one thousand, four hundred fifty".