135220054 has 8 divisors (see below), whose sum is σ = 203006808. Its totient is φ = 67551120.

The previous prime is 135220051. The next prime is 135220061. The reversal of 135220054 is 450022531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135220051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26527 + ... + 31210.

It is an arithmetic number, because the mean of its divisors is an integer number (25375851).

Almost surely, 2^135220054 is an apocalyptic number.

135220054 is a deficient number, since it is larger than the sum of its proper divisors (67786754).

135220054 is a wasteful number, since it uses less digits than its factorization.

135220054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58910.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 135220054 is about 11628.4157992394. The cubic root of 135220054 is about 513.2713638392.

Adding to 135220054 its reverse (450022531), we get a palindrome (585242585).

The spelling of 135220054 in words is "one hundred thirty-five million, two hundred twenty thousand, fifty-four".