87143299 has 2 divisors, whose sum is σ = 87143300. Its totient is φ = 87143298.

The previous prime is 87143281. The next prime is 87143323. The reversal of 87143299 is 99234178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87143299 - 2¹¹ = 87141251 is a prime.

It is not a weakly prime, because it can be changed into another prime (87143219) by changing a digit.

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, 43571649 + 43571650.

It is an arithmetic number, because the mean of its divisors is an integer number (43571650).

Almost surely, 2^87143299 is an apocalyptic number.

87143299 is a deficient number, since it is larger than the sum of its proper divisors (1).

87143299 is an equidigital number, since it uses as much as digits as its factorization.

87143299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 87143299 is about 9335.0575252646. The cubic root of 87143299 is about 443.3479102122.

The spelling of 87143299 in words is "eighty-seven million, one hundred forty-three thousand, two hundred ninety-nine".