118450639 has 2 divisors, whose sum is σ = 118450640. Its totient is φ = 118450638.

The previous prime is 118450613. The next prime is 118450699. The reversal of 118450639 is 936054811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118450639 - 2⁷ = 118450511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118450598 and 118450607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118450699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59225319 + 59225320.

It is an arithmetic number, because the mean of its divisors is an integer number (59225320).

Almost surely, 2^118450639 is an apocalyptic number.

118450639 is a deficient number, since it is larger than the sum of its proper divisors (1).

118450639 is an equidigital number, since it uses as much as digits as its factorization.

118450639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 118450639 is about 10883.5030665682. The cubic root of 118450639 is about 491.1104055534.

The spelling of 118450639 in words is "one hundred eighteen million, four hundred fifty thousand, six hundred thirty-nine".