87365143 has 2 divisors, whose sum is σ = 87365144. Its totient is φ = 87365142.

The previous prime is 87365141. The next prime is 87365153. The reversal of 87365143 is 34156378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87365143 - 2¹ = 87365141 is a prime.

It is a super-2 number, since 2×87365143² = 15265336422820898, which contains 22 as substring.

Together with 87365141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87365141) 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, 43682571 + 43682572.

It is an arithmetic number, because the mean of its divisors is an integer number (43682572).

Almost surely, 2^87365143 is an apocalyptic number.

87365143 is a deficient number, since it is larger than the sum of its proper divisors (1).

87365143 is an equidigital number, since it uses as much as digits as its factorization.

87365143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 87365143 is about 9346.9322774908. The cubic root of 87365143 is about 443.7238072750.

The spelling of 87365143 in words is "eighty-seven million, three hundred sixty-five thousand, one hundred forty-three".