842402147 has 2 divisors, whose sum is σ = 842402148. Its totient is φ = 842402146.

The previous prime is 842402137. The next prime is 842402191. The reversal of 842402147 is 741204248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842402147 - 2¹⁰ = 842401123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842402137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421201073 + 421201074.

It is an arithmetic number, because the mean of its divisors is an integer number (421201074).

Almost surely, 2^842402147 is an apocalyptic number.

842402147 is a deficient number, since it is larger than the sum of its proper divisors (1).

842402147 is an equidigital number, since it uses as much as digits as its factorization.

842402147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 842402147 is about 29024.1648803200. The cubic root of 842402147 is about 944.4373523307.

The spelling of 842402147 in words is "eight hundred forty-two million, four hundred two thousand, one hundred forty-seven".