131765768 has 8 divisors (see below), whose sum is σ = 247060830. Its totient is φ = 65882880.

The previous prime is 131765749. The next prime is 131765819. The reversal of 131765768 is 867567131.

It can be written as a sum of positive squares in only one way, i.e., 117462244 + 14303524 = 10838^2 + 3782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8235353 + ... + 8235368.

Almost surely, 2^131765768 is an apocalyptic number.

It is an amenable number.

131765768 is a deficient number, since it is larger than the sum of its proper divisors (115295062).

131765768 is a wasteful number, since it uses less digits than its factorization.

131765768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16470727 (or 16470723 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 131765768 is about 11478.9271275673. The cubic root of 131765768 is about 508.8629905169.

The spelling of 131765768 in words is "one hundred thirty-one million, seven hundred sixty-five thousand, seven hundred sixty-eight".