135220330 has 64 divisors (see below), whose sum is σ = 292896000. Its totient is φ = 43964928.

The previous prime is 135220313. The next prime is 135220339. The reversal of 135220330 is 33022531.

135220330 = T₃₇₂ + T₃₇₃ + ... + T₉₅₁.

It is a junction number, because it is equal to n+sod(n) for n = 135220298 and 135220307.

It is not an unprimeable number, because it can be changed into a prime (135220339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119206 + ... + 120334.

It is an arithmetic number, because the mean of its divisors is an integer number (4576500).

Almost surely, 2^135220330 is an apocalyptic number.

135220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135220330 is an abundant number, since it is smaller than the sum of its proper divisors (157675670).

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

135220330 is a wasteful number, since it uses less digits than its factorization.

135220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 135220330 is about 11628.4276667140. The cubic root of 135220330 is about 513.2717130547.

Adding to 135220330 its reverse (33022531), we get a palindrome (168242861).

The spelling of 135220330 in words is "one hundred thirty-five million, two hundred twenty thousand, three hundred thirty".