118409087 has 4 divisors (see below), whose sum is σ = 118601616. Its totient is φ = 118216560.

The previous prime is 118409077. The next prime is 118409101. The reversal of 118409087 is 780904811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118409087 - 2⁶ = 118409023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118409087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118409077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95339 + ... + 96572.

It is an arithmetic number, because the mean of its divisors is an integer number (29650404).

Almost surely, 2^118409087 is an apocalyptic number.

118409087 is a deficient number, since it is larger than the sum of its proper divisors (192529).

118409087 is an equidigital number, since it uses as much as digits as its factorization.

118409087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192528.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 118409087 is about 10881.5939549314. The cubic root of 118409087 is about 491.0529723295.

The spelling of 118409087 in words is "one hundred eighteen million, four hundred nine thousand, eighty-seven".