131587142 has 16 divisors (see below), whose sum is σ = 199584000. Its totient is φ = 65062920.

The previous prime is 131587139. The next prime is 131587153. The reversal of 131587142 is 241785131.

It is a junction number, because it is equal to n+sod(n) for n = 131587099 and 131587108.

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 7 ways as a sum of consecutive naturals, for example, 93359 + ... + 94757.

It is an arithmetic number, because the mean of its divisors is an integer number (12474000).

Almost surely, 2^131587142 is an apocalyptic number.

131587142 is a deficient number, since it is larger than the sum of its proper divisors (67996858).

131587142 is a wasteful number, since it uses less digits than its factorization.

131587142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891.

The product of its digits is 6720, while the sum is 32.

The square root of 131587142 is about 11471.1438836761. The cubic root of 131587142 is about 508.6329427414.

The spelling of 131587142 in words is "one hundred thirty-one million, five hundred eighty-seven thousand, one hundred forty-two".