118185513 has 8 divisors (see below), whose sum is σ = 166850208. Its totient is φ = 74155584.

The previous prime is 118185499. The next prime is 118185533. The reversal of 118185513 is 315581811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118185513 - 2⁴ = 118185497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118185533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158631 + ... + 1158732.

It is an arithmetic number, because the mean of its divisors is an integer number (20856276).

Almost surely, 2^118185513 is an apocalyptic number.

It is an amenable number.

118185513 is a deficient number, since it is larger than the sum of its proper divisors (48664695).

118185513 is a wasteful number, since it uses less digits than its factorization.

118185513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317383.

The product of its digits is 4800, while the sum is 33.

The square root of 118185513 is about 10871.3160656840. The cubic root of 118185513 is about 490.7437172139.

The spelling of 118185513 in words is "one hundred eighteen million, one hundred eighty-five thousand, five hundred thirteen".