87131175 has 12 divisors (see below), whose sum is σ = 144057000. Its totient is φ = 46469920.

The previous prime is 87131147. The next prime is 87131179. The reversal of 87131175 is 57113178.

It is not a de Polignac number, because 87131175 - 2⁸ = 87130919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87131179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 580800 + ... + 580949.

It is an arithmetic number, because the mean of its divisors is an integer number (12004750).

Almost surely, 2^87131175 is an apocalyptic number.

87131175 is a deficient number, since it is larger than the sum of its proper divisors (56925825).

87131175 is a wasteful number, since it uses less digits than its factorization.

87131175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161762 (or 1161757 counting only the distinct ones).

The product of its digits is 5880, while the sum is 33.

The square root of 87131175 is about 9334.4081226396. The cubic root of 87131175 is about 443.3273486796.

The spelling of 87131175 in words is "eighty-seven million, one hundred thirty-one thousand, one hundred seventy-five".