135520330 has 16 divisors (see below), whose sum is σ = 266112864. Its totient is φ = 49280080.

The previous prime is 135520309. The next prime is 135520351. The reversal of 135520330 is 33025531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (135520309) and next prime (135520351).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615892 + ... + 616111.

It is an arithmetic number, because the mean of its divisors is an integer number (16632054).

Almost surely, 2^135520330 is an apocalyptic number.

135520330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135520330 is a deficient number, since it is larger than the sum of its proper divisors (130592534).

135520330 is a wasteful number, since it uses less digits than its factorization.

135520330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232021.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 135520330 is about 11641.3199423433. The cubic root of 135520330 is about 513.6510144500.

Adding to 135520330 its reverse (33025531), we get a palindrome (168545861).

The spelling of 135520330 in words is "one hundred thirty-five million, five hundred twenty thousand, three hundred thirty".