1118165215 has 8 divisors (see below), whose sum is σ = 1342519920. Its totient is φ = 894051072.

The previous prime is 1118165201. The next prime is 1118165231. The reversal of 1118165215 is 5125618111.

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 1118165215 - 2⁵ = 1118165183 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 7 ways as a sum of consecutive naturals, for example, 49749 + ... + 68638.

It is an arithmetic number, because the mean of its divisors is an integer number (167814990).

Almost surely, 2^1118165215 is an apocalyptic number.

1118165215 is a deficient number, since it is larger than the sum of its proper divisors (224354705).

1118165215 is a wasteful number, since it uses less digits than its factorization.

1118165215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120281.

The product of its digits is 2400, while the sum is 31.

The square root of 1118165215 is about 33438.9774813764. The cubic root of 1118165215 is about 1037.9314205208.

The spelling of 1118165215 in words is "one billion, one hundred eighteen million, one hundred sixty-five thousand, two hundred fifteen".