118531283 has 8 divisors (see below), whose sum is σ = 128843568. Its totient is φ = 108389664.

The previous prime is 118531279. The next prime is 118531297. The reversal of 118531283 is 382135811.

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 118531283 - 2² = 118531279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118531243) 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, 41216 + ... + 43997.

It is an arithmetic number, because the mean of its divisors is an integer number (16105446).

Almost surely, 2^118531283 is an apocalyptic number.

118531283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

118531283 is a deficient number, since it is larger than the sum of its proper divisors (10312285).

118531283 is a wasteful number, since it uses less digits than its factorization.

118531283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85333.

The product of its digits is 5760, while the sum is 32.

The square root of 118531283 is about 10887.2073094986. The cubic root of 118531283 is about 491.2218334676.

It can be divided in two parts, 1185 and 31283, that multiplied together give a triangular number (37070355 = T₈₆₁₀).

The spelling of 118531283 in words is "one hundred eighteen million, five hundred thirty-one thousand, two hundred eighty-three".