118000639 has 2 divisors, whose sum is σ = 118000640. Its totient is φ = 118000638.

The previous prime is 118000607. The next prime is 118000667. The reversal of 118000639 is 936000811.

It is a happy number.

It is an a-pointer prime, because the next prime (118000667) can be obtained adding 118000639 to its sum of digits (28).

It is a strong prime.

It is an emirp because it is prime and its reverse (936000811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118000639 - 2⁵ = 118000607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118000679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59000319 + 59000320.

It is an arithmetic number, because the mean of its divisors is an integer number (59000320).

Almost surely, 2^118000639 is an apocalyptic number.

118000639 is a deficient number, since it is larger than the sum of its proper divisors (1).

118000639 is an equidigital number, since it uses as much as digits as its factorization.

118000639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 118000639 is about 10862.8099035194. The cubic root of 118000639 is about 490.4876985211.

The spelling of 118000639 in words is "one hundred eighteen million, six hundred thirty-nine", and thus it is an aban number.