842146317 has 12 divisors (see below), whose sum is σ = 1227594940. Its totient is φ = 556279488.

The previous prime is 842146301. The next prime is 842146339. The reversal of 842146317 is 713641248.

842146317 is a `hidden beast` number, since 8 + 4 + 2 + 14 + 631 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 629307396 + 212838921 = 25086^2 + 14589^2 .

It is not a de Polignac number, because 842146317 - 2⁴ = 842146301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842146387) 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 in 11 ways as a sum of consecutive naturals, for example, 428248 + ... + 430209.

Almost surely, 2^842146317 is an apocalyptic number.

It is an amenable number.

842146317 is a deficient number, since it is larger than the sum of its proper divisors (385448623).

842146317 is a wasteful number, since it uses less digits than its factorization.

842146317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858572 (or 858569 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 842146317 is about 29019.7573559808. The cubic root of 842146317 is about 944.3417369243.

The spelling of 842146317 in words is "eight hundred forty-two million, one hundred forty-six thousand, three hundred seventeen".