131954685 has 16 divisors (see below), whose sum is σ = 211273920. Its totient is φ = 70327040.

The previous prime is 131954681. The next prime is 131954699. The reversal of 131954685 is 586459131.

It is not a de Polignac number, because 131954685 - 2² = 131954681 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131954681) 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, 33205 + ... + 36965.

It is an arithmetic number, because the mean of its divisors is an integer number (13204620).

Almost surely, 2^131954685 is an apocalyptic number.

131954685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131954685 is a deficient number, since it is larger than the sum of its proper divisors (79319235).

131954685 is a wasteful number, since it uses less digits than its factorization.

131954685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108.

The product of its digits is 129600, while the sum is 42.

The square root of 131954685 is about 11487.1530415504. The cubic root of 131954685 is about 509.1060656965.

The spelling of 131954685 in words is "one hundred thirty-one million, nine hundred fifty-four thousand, six hundred eighty-five".