131488618 has 8 divisors (see below), whose sum is σ = 197691840. Its totient is φ = 65591340.

The previous prime is 131488603. The next prime is 131488649. The reversal of 131488618 is 816884131.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 75408 + ... + 77131.

It is an arithmetic number, because the mean of its divisors is an integer number (24711480).

Almost surely, 2^131488618 is an apocalyptic number.

131488618 is a deficient number, since it is larger than the sum of its proper divisors (66203222).

131488618 is a wasteful number, since it uses less digits than its factorization.

131488618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152972.

The product of its digits is 36864, while the sum is 40.

The square root of 131488618 is about 11466.8486516567. The cubic root of 131488618 is about 508.5059671532.

The spelling of 131488618 in words is "one hundred thirty-one million, four hundred eighty-eight thousand, six hundred eighteen".