1153312305 has 16 divisors (see below), whose sum is σ = 1847064384. Its totient is φ = 614511680.

The previous prime is 1153312297. The next prime is 1153312319. The reversal of 1153312305 is 5032133511.

It is not a de Polignac number, because 1153312305 - 2³ = 1153312297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20319 + ... + 52148.

It is an arithmetic number, because the mean of its divisors is an integer number (115441524).

Almost surely, 2^1153312305 is an apocalyptic number.

1153312305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1153312305 is a deficient number, since it is larger than the sum of its proper divisors (693752079).

1153312305 is a wasteful number, since it uses less digits than its factorization.

1153312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73536.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1153312305 is about 33960.4520729628. The cubic root of 1153312305 is about 1048.6944635783.

Adding to 1153312305 its reverse (5032133511), we get a palindrome (6185445816).

The spelling of 1153312305 in words is "one billion, one hundred fifty-three million, three hundred twelve thousand, three hundred five".