118737389 has 2 divisors, whose sum is σ = 118737390. Its totient is φ = 118737388.

The previous prime is 118737343. The next prime is 118737391. The reversal of 118737389 is 983737811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 6165289 = 10610^2 + 2483^2 .

It is a cyclic number.

It is not a de Polignac number, because 118737389 - 2⁸ = 118737133 is a prime.

It is a Sophie Germain prime.

Together with 118737391, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118737089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59368694 + 59368695.

It is an arithmetic number, because the mean of its divisors is an integer number (59368695).

Almost surely, 2^118737389 is an apocalyptic number.

It is an amenable number.

118737389 is a deficient number, since it is larger than the sum of its proper divisors (1).

118737389 is an equidigital number, since it uses as much as digits as its factorization.

118737389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 47.

The square root of 118737389 is about 10896.6687111245. The cubic root of 118737389 is about 491.5063860327.

The spelling of 118737389 in words is "one hundred eighteen million, seven hundred thirty-seven thousand, three hundred eighty-nine".