82257243 has 4 divisors (see below), whose sum is σ = 109676328. Its totient is φ = 54838160.

The previous prime is 82257239. The next prime is 82257283. The reversal of 82257243 is 34275228.

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

It is a cyclic number.

It is not a de Polignac number, because 82257243 - 2² = 82257239 is a prime.

It is a super-2 number, since 2×82257243² = 13532508051922098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82257283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13709538 + ... + 13709543.

It is an arithmetic number, because the mean of its divisors is an integer number (27419082).

Almost surely, 2^82257243 is an apocalyptic number.

82257243 is a deficient number, since it is larger than the sum of its proper divisors (27419085).

82257243 is a wasteful number, since it uses less digits than its factorization.

82257243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27419084.

The product of its digits is 26880, while the sum is 33.

The square root of 82257243 is about 9069.5778843340. The cubic root of 82257243 is about 434.9019781779.

The spelling of 82257243 in words is "eighty-two million, two hundred fifty-seven thousand, two hundred forty-three".