87267143 has 2 divisors, whose sum is σ = 87267144. Its totient is φ = 87267142.

The previous prime is 87267107. The next prime is 87267151. The reversal of 87267143 is 34176278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87267143 - 2¹⁴ = 87250759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87267097 and 87267106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87267043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43633571 + 43633572.

It is an arithmetic number, because the mean of its divisors is an integer number (43633572).

Almost surely, 2^87267143 is an apocalyptic number.

87267143 is a deficient number, since it is larger than the sum of its proper divisors (1).

87267143 is an equidigital number, since it uses as much as digits as its factorization.

87267143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 87267143 is about 9341.6884448155. The cubic root of 87267143 is about 443.5578326036.

The spelling of 87267143 in words is "eighty-seven million, two hundred sixty-seven thousand, one hundred forty-three".