118617863 has 8 divisors (see below), whose sum is σ = 145991328. Its totient is φ = 93851424.

The previous prime is 118617841. The next prime is 118617881. The reversal of 118617863 is 368716811.

118617863 is nontrivially palindromic in base 8.

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 118617863 - 2¹² = 118613767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118617863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118617803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651656 + ... + 651837.

It is an arithmetic number, because the mean of its divisors is an integer number (18248916).

Almost surely, 2^118617863 is an apocalyptic number.

118617863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

118617863 is a deficient number, since it is larger than the sum of its proper divisors (27373465).

118617863 is a wasteful number, since it uses less digits than its factorization.

118617863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303513.

The product of its digits is 48384, while the sum is 41.

The square root of 118617863 is about 10891.1828099615. The cubic root of 118617863 is about 491.3414070639.

The spelling of 118617863 in words is "one hundred eighteen million, six hundred seventeen thousand, eight hundred sixty-three".