118494839 has 2 divisors, whose sum is σ = 118494840. Its totient is φ = 118494838.

The previous prime is 118494823. The next prime is 118494853. The reversal of 118494839 is 938494811.

It is a strong prime.

It is an emirp because it is prime and its reverse (938494811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118494839 - 2⁴ = 118494823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118494793 and 118494802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118494809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59247419 + 59247420.

It is an arithmetic number, because the mean of its divisors is an integer number (59247420).

Almost surely, 2^118494839 is an apocalyptic number.

118494839 is a deficient number, since it is larger than the sum of its proper divisors (1).

118494839 is an equidigital number, since it uses as much as digits as its factorization.

118494839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 47.

The square root of 118494839 is about 10885.5334733765. The cubic root of 118494839 is about 491.1714841053.

The spelling of 118494839 in words is "one hundred eighteen million, four hundred ninety-four thousand, eight hundred thirty-nine".