8142882257 has 4 divisors (see below), whose sum is σ = 8496920640. Its totient is φ = 7788843876.

The previous prime is 8142882229. The next prime is 8142882277. The reversal of 8142882257 is 7522882418.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7522882418 = 2 ⋅3761441209.

It is a cyclic number.

It is not a de Polignac number, because 8142882257 - 2¹⁴ = 8142865873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142882217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177019157 + ... + 177019202.

It is an arithmetic number, because the mean of its divisors is an integer number (2124230160).

Almost surely, 2^8142882257 is an apocalyptic number.

It is an amenable number.

8142882257 is a deficient number, since it is larger than the sum of its proper divisors (354038383).

8142882257 is a wasteful number, since it uses less digits than its factorization.

8142882257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354038382.

The product of its digits is 573440, while the sum is 47.

The square root of 8142882257 is about 90237.9202829941. The cubic root of 8142882257 is about 2011.8366632520.

The spelling of 8142882257 in words is "eight billion, one hundred forty-two million, eight hundred eighty-two thousand, two hundred fifty-seven".