1155655317 has 8 divisors (see below), whose sum is σ = 1573658496. Its totient is φ = 754044512.

The previous prime is 1155655289. The next prime is 1155655327. The reversal of 1155655317 is 7135565511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155655317 - 2⁶ = 1155655253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155655327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4097928 + ... + 4098209.

It is an arithmetic number, because the mean of its divisors is an integer number (196707312).

Almost surely, 2^1155655317 is an apocalyptic number.

It is an amenable number.

1155655317 is a deficient number, since it is larger than the sum of its proper divisors (418003179).

1155655317 is an equidigital number, since it uses as much as digits as its factorization.

1155655317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196187.

The product of its digits is 78750, while the sum is 39.

The square root of 1155655317 is about 33994.9307544522. The cubic root of 1155655317 is about 1049.4041417425.

The spelling of 1155655317 in words is "one billion, one hundred fifty-five million, six hundred fifty-five thousand, three hundred seventeen".