131442486 has 64 divisors (see below), whose sum is σ = 311950848. Its totient is φ = 36142848.

The previous prime is 131442473. The next prime is 131442517. The reversal of 131442486 is 684244131.

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 31 ways as a sum of consecutive naturals, for example, 131340 + ... + 132336.

It is an arithmetic number, because the mean of its divisors is an integer number (4874232).

Almost surely, 2^131442486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131442486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155975424).

131442486 is an abundant number, since it is smaller than the sum of its proper divisors (180508362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131442486 is a wasteful number, since it uses less digits than its factorization.

131442486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125.

The product of its digits is 18432, while the sum is 33.

The square root of 131442486 is about 11464.8369373489. The cubic root of 131442486 is about 508.4464914318.

The spelling of 131442486 in words is "one hundred thirty-one million, four hundred forty-two thousand, four hundred eighty-six".