118787 has 2 divisors, whose sum is σ = 118788. Its totient is φ = 118786.

The previous prime is 118757. The next prime is 118799. The reversal of 118787 is 787811.

It is a strong prime.

It is an emirp because it is prime and its reverse (787811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118787 - 2¹⁰ = 117763 is a prime.

It is a super-2 number, since 2×118787² = 28220702738, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (118717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59393 + 59394.

It is an arithmetic number, because the mean of its divisors is an integer number (59394).

2¹¹⁸⁷⁸⁷ is an apocalyptic number.

118787 is a deficient number, since it is larger than the sum of its proper divisors (1).

118787 is an equidigital number, since it uses as much as digits as its factorization.

118787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 32.

The square root of 118787 is about 344.6548998636. The cubic root of 118787 is about 49.1574830433.

The spelling of 118787 in words is "one hundred eighteen thousand, seven hundred eighty-seven".