118728619 has 2 divisors, whose sum is σ = 118728620. Its totient is φ = 118728618.

The previous prime is 118728613. The next prime is 118728647. The reversal of 118728619 is 916827811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118728619 - 2³ = 118728611 is a prime.

It is a super-2 number, since 2×118728619² = 28192969939294322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118728611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59364309 + 59364310.

It is an arithmetic number, because the mean of its divisors is an integer number (59364310).

Almost surely, 2^118728619 is an apocalyptic number.

118728619 is a deficient number, since it is larger than the sum of its proper divisors (1).

118728619 is an equidigital number, since it uses as much as digits as its factorization.

118728619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 43.

The square root of 118728619 is about 10896.2662871279. The cubic root of 118728619 is about 491.4942847697.

The spelling of 118728619 in words is "one hundred eighteen million, seven hundred twenty-eight thousand, six hundred nineteen".