842141057 has 2 divisors, whose sum is σ = 842141058. Its totient is φ = 842141056.

The previous prime is 842141017. The next prime is 842141059. The reversal of 842141057 is 750141248.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571735921 + 270405136 = 23911^2 + 16444^2 .

It is a cyclic number.

It is not a de Polignac number, because 842141057 - 2⁸ = 842140801 is a prime.

Together with 842141059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842141059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421070528 + 421070529.

It is an arithmetic number, because the mean of its divisors is an integer number (421070529).

Almost surely, 2^842141057 is an apocalyptic number.

It is an amenable number.

842141057 is a deficient number, since it is larger than the sum of its proper divisors (1).

842141057 is an equidigital number, since it uses as much as digits as its factorization.

842141057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 842141057 is about 29019.6667279278. Note that the first 3 decimals coincide. The cubic root of 842141057 is about 944.3397708179.

The spelling of 842141057 in words is "eight hundred forty-two million, one hundred forty-one thousand, fifty-seven".