131662143 has 24 divisors (see below), whose sum is σ = 201188832. Its totient is φ = 82798848.

The previous prime is 131662133. The next prime is 131662147. The reversal of 131662143 is 341266131.

131662143 is a `hidden beast` number, since 1 + 31 + 6 + 621 + 4 + 3 = 666.

It is not a de Polignac number, because 131662143 - 2⁶ = 131662079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131662147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10755 + ... + 19467.

It is an arithmetic number, because the mean of its divisors is an integer number (8382868).

Almost surely, 2^131662143 is an apocalyptic number.

131662143 is a deficient number, since it is larger than the sum of its proper divisors (69526689).

131662143 is a wasteful number, since it uses less digits than its factorization.

131662143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8815 (or 8812 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 131662143 is about 11474.4125339819. The cubic root of 131662143 is about 508.7295599167.

The spelling of 131662143 in words is "one hundred thirty-one million, six hundred sixty-two thousand, one hundred forty-three".