842712147 has 8 divisors (see below), whose sum is σ = 1248462480. Its totient is φ = 561808080.

The previous prime is 842712139. The next prime is 842712161. The reversal of 842712147 is 741217248.

It is not a de Polignac number, because 842712147 - 2³ = 842712139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842712547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15605754 + ... + 15605807.

It is an arithmetic number, because the mean of its divisors is an integer number (156057810).

Almost surely, 2^842712147 is an apocalyptic number.

842712147 is a deficient number, since it is larger than the sum of its proper divisors (405750333).

842712147 is a wasteful number, since it uses less digits than its factorization.

842712147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31211570 (or 31211564 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 842712147 is about 29029.5047667024. The cubic root of 842712147 is about 944.5531876137.

The spelling of 842712147 in words is "eight hundred forty-two million, seven hundred twelve thousand, one hundred forty-seven".