135144330 has 32 divisors (see below), whose sum is σ = 324739584. Its totient is φ = 35994816.

The previous prime is 135144319. The next prime is 135144337. The reversal of 135144330 is 33441531.

It is a happy number.

It is a super-2 number, since 2×135144330² = 36527979862297800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135144330.

It is not an unprimeable number, because it can be changed into a prime (135144337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28167 + ... + 32613.

It is an arithmetic number, because the mean of its divisors is an integer number (10148112).

Almost surely, 2^135144330 is an apocalyptic number.

135144330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135144330 is an abundant number, since it is smaller than the sum of its proper divisors (189595254).

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

135144330 is a wasteful number, since it uses less digits than its factorization.

135144330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 135144330 is about 11625.1593537465. The cubic root of 135144330 is about 513.1755343201.

Adding to 135144330 its reverse (33441531), we get a palindrome (168585861).

The spelling of 135144330 in words is "one hundred thirty-five million, one hundred forty-four thousand, three hundred thirty".