135520264 has 16 divisors (see below), whose sum is σ = 277200720. Its totient is φ = 61600080.

The previous prime is 135520237. The next prime is 135520267. The reversal of 135520264 is 462025531.

It is not an unprimeable number, because it can be changed into a prime (135520267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769914 + ... + 770089.

It is an arithmetic number, because the mean of its divisors is an integer number (17325045).

Almost surely, 2^135520264 is an apocalyptic number.

It is an amenable number.

135520264 is an abundant number, since it is smaller than the sum of its proper divisors (141680456).

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

135520264 is a wasteful number, since it uses less digits than its factorization.

135520264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540020 (or 1540016 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 135520264 is about 11641.3171076129. The cubic root of 135520264 is about 513.6509310653.

Adding to 135520264 its reverse (462025531), we get a palindrome (597545795).

The spelling of 135520264 in words is "one hundred thirty-five million, five hundred twenty thousand, two hundred sixty-four".