931163087 has 2 divisors, whose sum is σ = 931163088. Its totient is φ = 931163086.

The previous prime is 931163081. The next prime is 931163099. The reversal of 931163087 is 780361139.

It is a weak prime.

It is an emirp because it is prime and its reverse (780361139) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 931163087 - 2²⁰ = 930114511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 931163087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (931163081) by changing a digit.

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 as a sum of consecutive naturals, namely, 465581543 + 465581544.

It is an arithmetic number, because the mean of its divisors is an integer number (465581544).

Almost surely, 2^931163087 is an apocalyptic number.

931163087 is a deficient number, since it is larger than the sum of its proper divisors (1).

931163087 is an equidigital number, since it uses as much as digits as its factorization.

931163087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 931163087 is about 30514.9649680284. The cubic root of 931163087 is about 976.5067518557.

The spelling of 931163087 in words is "nine hundred thirty-one million, one hundred sixty-three thousand, eighty-seven".