1305135320 has 32 divisors (see below), whose sum is σ = 2940310800. Its totient is φ = 521386368.

The previous prime is 1305135301. The next prime is 1305135347. The reversal of 1305135320 is 235315031.

It is a congruent number.

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, 11411 + ... + 52349.

Almost surely, 2^1305135320 is an apocalyptic number.

1305135320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305135320 is an abundant number, since it is smaller than the sum of its proper divisors (1635175480).

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

1305135320 is a wasteful number, since it uses less digits than its factorization.

1305135320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41747 (or 41743 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1305135320 is about 36126.6566402151. The cubic root of 1305135320 is about 1092.8280850959.

The spelling of 1305135320 in words is "one billion, three hundred five million, one hundred thirty-five thousand, three hundred twenty".