8513143 has 2 divisors, whose sum is σ = 8513144. Its totient is φ = 8513142.

The previous prime is 8513137. The next prime is 8513147. The reversal of 8513143 is 3413158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8513143 - 2⁵ = 8513111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8513147) 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, 4256571 + 4256572.

It is an arithmetic number, because the mean of its divisors is an integer number (4256572).

Almost surely, 2^8513143 is an apocalyptic number.

8513143 is a deficient number, since it is larger than the sum of its proper divisors (1).

8513143 is an equidigital number, since it uses as much as digits as its factorization.

8513143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 8513143 is about 2917.7290826943. The cubic root of 8513143 is about 204.1878875809.

The spelling of 8513143 in words is "eight million, five hundred thirteen thousand, one hundred forty-three".