118487913 has 16 divisors (see below), whose sum is σ = 163019520. Its totient is φ = 76512384.

The previous prime is 118487903. The next prime is 118487947. The reversal of 118487913 is 319784811.

It is not a de Polignac number, because 118487913 - 2¹³ = 118479721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118487903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7845 + ... + 17277.

It is an arithmetic number, because the mean of its divisors is an integer number (10188720).

Almost surely, 2^118487913 is an apocalyptic number.

It is an amenable number.

118487913 is a deficient number, since it is larger than the sum of its proper divisors (44531607).

118487913 is an equidigital number, since it uses as much as digits as its factorization.

118487913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9568.

The product of its digits is 48384, while the sum is 42.

The square root of 118487913 is about 10885.2153400840. The cubic root of 118487913 is about 491.1619142933.

The spelling of 118487913 in words is "one hundred eighteen million, four hundred eighty-seven thousand, nine hundred thirteen".