1117207215 has 32 divisors (see below), whose sum is σ = 1999512000. Its totient is φ = 591834240.

The previous prime is 1117207213. The next prime is 1117207271. The reversal of 1117207215 is 5127027111.

It is not a de Polignac number, because 1117207215 - 2¹ = 1117207213 is a prime.

It is a super-3 number, since 3×1117207215³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117207213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7656 + ... + 47885.

It is an arithmetic number, because the mean of its divisors is an integer number (62484750).

Almost surely, 2^1117207215 is an apocalyptic number.

1117207215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1117207215 is a deficient number, since it is larger than the sum of its proper divisors (882304785).

1117207215 is a wasteful number, since it uses less digits than its factorization.

1117207215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55704 (or 55698 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 27.

The square root of 1117207215 is about 33424.6498111798. The cubic root of 1117207215 is about 1037.6349162139.

The spelling of 1117207215 in words is "one billion, one hundred seventeen million, two hundred seven thousand, two hundred fifteen".