82103243 has 2 divisors, whose sum is σ = 82103244. Its totient is φ = 82103242.

The previous prime is 82103239. The next prime is 82103291. The reversal of 82103243 is 34230128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82103243 - 2² = 82103239 is a prime.

It is a super-2 number, since 2×82103243² = 13481885022234098, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (82103233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41051621 + 41051622.

It is an arithmetic number, because the mean of its divisors is an integer number (41051622).

Almost surely, 2^82103243 is an apocalyptic number.

82103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

82103243 is an equidigital number, since it uses as much as digits as its factorization.

82103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 82103243 is about 9061.0839859257. The cubic root of 82103243 is about 434.6304043445.

The spelling of 82103243 in words is "eighty-two million, one hundred three thousand, two hundred forty-three".