1117243215 has 36 divisors (see below), whose sum is σ = 2128620312. Its totient is φ = 541691040.

The previous prime is 1117243207. The next prime is 1117243223. The reversal of 1117243215 is 5123427111.

It is an interprime number because it is at equal distance from previous prime (1117243207) and next prime (1117243223).

It is not a de Polignac number, because 1117243215 - 2³ = 1117243207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97149 + ... + 108038.

It is an arithmetic number, because the mean of its divisors is an integer number (59128342).

Almost surely, 2^1117243215 is an apocalyptic number.

1117243215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1117243215 is a deficient number, since it is larger than the sum of its proper divisors (1011377097).

1117243215 is a wasteful number, since it uses less digits than its factorization.

1117243215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205220 (or 205206 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1117243215 is about 33425.1883315562. The cubic root of 1117243215 is about 1037.6460614026.

The spelling of 1117243215 in words is "one billion, one hundred seventeen million, two hundred forty-three thousand, two hundred fifteen".