131718368 has 24 divisors (see below), whose sum is σ = 259916832. Its totient is φ = 65707776.

The previous prime is 131718361. The next prime is 131718383. The reversal of 131718368 is 863817131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131718361) 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, 10121 + ... + 19127.

It is an arithmetic number, because the mean of its divisors is an integer number (10829868).

Almost surely, 2^131718368 is an apocalyptic number.

It is an amenable number.

131718368 is a deficient number, since it is larger than the sum of its proper divisors (128198464).

131718368 is an equidigital number, since it uses as much as digits as its factorization.

131718368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9474 (or 9466 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 131718368 is about 11476.8622889708. The cubic root of 131718368 is about 508.8019655660.

The spelling of 131718368 in words is "one hundred thirty-one million, seven hundred eighteen thousand, three hundred sixty-eight".