118994389 has 2 divisors, whose sum is σ = 118994390. Its totient is φ = 118994388.

The previous prime is 118994383. The next prime is 118994411. The reversal of 118994389 is 983499811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81270225 + 37724164 = 9015^2 + 6142^2 .

It is a cyclic number.

It is not a de Polignac number, because 118994389 - 2⁵ = 118994357 is a prime.

It is a super-2 number, since 2×118994389² = 28319329226966642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118994383) 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, 59497194 + 59497195.

It is an arithmetic number, because the mean of its divisors is an integer number (59497195).

Almost surely, 2^118994389 is an apocalyptic number.

It is an amenable number.

118994389 is a deficient number, since it is larger than the sum of its proper divisors (1).

118994389 is an equidigital number, since it uses as much as digits as its factorization.

118994389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 52.

The square root of 118994389 is about 10908.4549318407. The cubic root of 118994389 is about 491.8607425849.

The spelling of 118994389 in words is "one hundred eighteen million, nine hundred ninety-four thousand, three hundred eighty-nine".