135304321215 has 64 divisors (see below), whose sum is σ = 256237240320. Its totient is φ = 59684580480.

The previous prime is 135304321193. The next prime is 135304321231. The reversal of 135304321215 is 512123403531.

It is not a de Polignac number, because 135304321215 - 2⁵ = 135304321183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157306 + ... + 543464.

It is an arithmetic number, because the mean of its divisors is an integer number (4003706880).

Almost surely, 2^135304321215 is an apocalyptic number.

135304321215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135304321215 is a deficient number, since it is larger than the sum of its proper divisors (120932919105).

135304321215 is a wasteful number, since it uses less digits than its factorization.

135304321215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386292.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 135304321215 its reverse (512123403531), we get a palindrome (647427724746).

The spelling of 135304321215 in words is "one hundred thirty-five billion, three hundred four million, three hundred twenty-one thousand, two hundred fifteen".