82123527 has 4 divisors (see below), whose sum is σ = 109498040. Its totient is φ = 54749016.

The previous prime is 82123513. The next prime is 82123571. The reversal of 82123527 is 72532128.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82123527 - 2⁷ = 82123399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82123494 and 82123503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82123127) 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 in 3 ways as a sum of consecutive naturals, for example, 13687252 + ... + 13687257.

It is an arithmetic number, because the mean of its divisors is an integer number (27374510).

Almost surely, 2^82123527 is an apocalyptic number.

82123527 is a deficient number, since it is larger than the sum of its proper divisors (27374513).

82123527 is a wasteful number, since it uses less digits than its factorization.

82123527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27374512.

The product of its digits is 6720, while the sum is 30.

The square root of 82123527 is about 9062.2032089332. The cubic root of 82123527 is about 434.6661939060. Note that the first 3 decimals are identical.

The spelling of 82123527 in words is "eighty-two million, one hundred twenty-three thousand, five hundred twenty-seven".