1117217919 has 8 divisors (see below), whose sum is σ = 1495805872. Its totient is φ = 741720960.

The previous prime is 1117217887. The next prime is 1117217957. The reversal of 1117217919 is 9197127111.

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

It is not a de Polignac number, because 1117217919 - 2⁵ = 1117217887 is a prime.

It is a super-2 number, since 2×1117217919² = 2496351757069381122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117217419) 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 7 ways as a sum of consecutive naturals, for example, 771904 + ... + 773349.

It is an arithmetic number, because the mean of its divisors is an integer number (186975734).

Almost surely, 2^1117217919 is an apocalyptic number.

1117217919 is a deficient number, since it is larger than the sum of its proper divisors (378587953).

1117217919 is a wasteful number, since it uses less digits than its factorization.

1117217919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545497.

The product of its digits is 7938, while the sum is 39.

The square root of 1117217919 is about 33424.8099321447. The cubic root of 1117217919 is about 1037.6382300750.

The spelling of 1117217919 in words is "one billion, one hundred seventeen million, two hundred seventeen thousand, nine hundred nineteen".