1317830055 has 32 divisors (see below), whose sum is σ = 2244210624. Its totient is φ = 658046976.

The previous prime is 1317830051. The next prime is 1317830099. The reversal of 1317830055 is 5500387131.

It is not a de Polignac number, because 1317830055 - 2² = 1317830051 is a prime.

It is a super-2 number, since 2×1317830055² = 3473352107722606050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1317829998 and 1317830025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317830051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35827 + ... + 62603.

It is an arithmetic number, because the mean of its divisors is an integer number (70131582).

Almost surely, 2^1317830055 is an apocalyptic number.

1317830055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1317830055 is a deficient number, since it is larger than the sum of its proper divisors (926380569).

1317830055 is a wasteful number, since it uses less digits than its factorization.

1317830055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26995.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1317830055 is about 36301.9290809731. The cubic root of 1317830055 is about 1096.3598834028.

The spelling of 1317830055 in words is "one billion, three hundred seventeen million, eight hundred thirty thousand, fifty-five".