135420450 has 48 divisors (see below), whose sum is σ = 366378336. Its totient is φ = 32828800.

The previous prime is 135420449. The next prime is 135420469. The reversal of 135420450 is 54024531.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135420450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39387 + ... + 42686.

It is an arithmetic number, because the mean of its divisors is an integer number (7632882).

Almost surely, 2^135420450 is an apocalyptic number.

135420450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135420450 is an abundant number, since it is smaller than the sum of its proper divisors (230957886).

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

135420450 is a wasteful number, since it uses less digits than its factorization.

135420450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82099 (or 82094 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 135420450 is about 11637.0292600818. The cubic root of 135420450 is about 513.5247945876.

Adding to 135420450 its reverse (54024531), we get a palindrome (189444981).

The spelling of 135420450 in words is "one hundred thirty-five million, four hundred twenty thousand, four hundred fifty".