842253147 has 20 divisors (see below), whose sum is σ = 1324403080. Its totient is φ = 531948384.

The previous prime is 842253133. The next prime is 842253149. The reversal of 842253147 is 741352248.

It is a happy number.

842253147 is a `hidden beast` number, since 84 + 2 + 2 + 531 + 47 = 666.

It is not a de Polignac number, because 842253147 - 2¹⁶ = 842187611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842253149) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 272098 + ... + 275175.

It is an arithmetic number, because the mean of its divisors is an integer number (66220154).

Almost surely, 2^842253147 is an apocalyptic number.

842253147 is a deficient number, since it is larger than the sum of its proper divisors (482149933).

842253147 is a wasteful number, since it uses less digits than its factorization.

842253147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547304 (or 547295 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 842253147 is about 29021.5979401548. The cubic root of 842253147 is about 944.3816665503.

The spelling of 842253147 in words is "eight hundred forty-two million, two hundred fifty-three thousand, one hundred forty-seven".