118178283 has 4 divisors (see below), whose sum is σ = 157571048. Its totient is φ = 78785520.

The previous prime is 118178273. The next prime is 118178303. The reversal of 118178283 is 382871811.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 118178283 - 2⁴ = 118178267 is a prime.

It is a super-2 number, since 2×118178283² = 27932213145656178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118178213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19696378 + ... + 19696383.

It is an arithmetic number, because the mean of its divisors is an integer number (39392762).

Almost surely, 2^118178283 is an apocalyptic number.

118178283 is a deficient number, since it is larger than the sum of its proper divisors (39392765).

118178283 is an equidigital number, since it uses as much as digits as its factorization.

118178283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39392764.

The product of its digits is 21504, while the sum is 39.

The square root of 118178283 is about 10870.9835341610. The cubic root of 118178283 is about 490.7337099258.

It can be divided in two parts, 11817 and 8283, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 118178283 in words is "one hundred eighteen million, one hundred seventy-eight thousand, two hundred eighty-three".