131071918 has 8 divisors (see below), whose sum is σ = 206955720. Its totient is φ = 62086680.

The previous prime is 131071907. The next prime is 131071931. The reversal of 131071918 is 819170131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131071918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724593 + ... + 1724668.

It is an arithmetic number, because the mean of its divisors is an integer number (25869465).

Almost surely, 2^131071918 is an apocalyptic number.

131071918 is a deficient number, since it is larger than the sum of its proper divisors (75883802).

131071918 is a wasteful number, since it uses less digits than its factorization.

131071918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449282.

The product of its (nonzero) digits is 1512, while the sum is 31.

The square root of 131071918 is about 11448.6644635957. The cubic root of 131071918 is about 507.9682306997.

The spelling of 131071918 in words is "one hundred thirty-one million, seventy-one thousand, nine hundred eighteen".