131541806 has 8 divisors (see below), whose sum is σ = 215250264. Its totient is φ = 59791720.

The previous prime is 131541779. The next prime is 131541811. The reversal of 131541806 is 608145131.

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

It is a congruent number.

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, 2989565 + ... + 2989608.

It is an arithmetic number, because the mean of its divisors is an integer number (26906283).

Almost surely, 2^131541806 is an apocalyptic number.

131541806 is a deficient number, since it is larger than the sum of its proper divisors (83708458).

131541806 is a wasteful number, since it uses less digits than its factorization.

131541806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979186.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 131541806 is about 11469.1676245489. The cubic root of 131541806 is about 508.5745225658.

Adding to 131541806 its reverse (608145131), we get a palindrome (739686937).

The spelling of 131541806 in words is "one hundred thirty-one million, five hundred forty-one thousand, eight hundred six".