82265143 has 2 divisors, whose sum is σ = 82265144. Its totient is φ = 82265142.

The previous prime is 82265129. The next prime is 82265153. The reversal of 82265143 is 34156228.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82265143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82265153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41132571 + 41132572.

It is an arithmetic number, because the mean of its divisors is an integer number (41132572).

Almost surely, 2^82265143 is an apocalyptic number.

82265143 is a deficient number, since it is larger than the sum of its proper divisors (1).

82265143 is an equidigital number, since it uses as much as digits as its factorization.

82265143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 82265143 is about 9070.0133958005. The cubic root of 82265143 is about 434.9159004196.

It can be divided in two parts, 82 and 265143, that added together give a square (265225 = 515²).

The spelling of 82265143 in words is "eighty-two million, two hundred sixty-five thousand, one hundred forty-three".