147847828285 has 4 divisors (see below), whose sum is σ = 177417393948. Its totient is φ = 118278262624.

The previous prime is 147847828283. The next prime is 147847828291. The reversal of 147847828285 is 582828748741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 582828748741 = 281 ⋅2074123661.

It can be written as a sum of positive squares in 2 ways, for example, as 54811237924 + 93036590361 = 234118^2 + 305019^2 .

It is a cyclic number.

It is not a de Polignac number, because 147847828285 - 2¹ = 147847828283 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 (147847828283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14784782824 + ... + 14784782833.

It is an arithmetic number, because the mean of its divisors is an integer number (44354348487).

Almost surely, 2^147847828285 is an apocalyptic number.

It is an amenable number.

147847828285 is a deficient number, since it is larger than the sum of its proper divisors (29569565663).

147847828285 is an equidigital number, since it uses as much as digits as its factorization.

147847828285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29569565662.

The product of its digits is 64225280, while the sum is 64.

The spelling of 147847828285 in words is "one hundred forty-seven billion, eight hundred forty-seven million, eight hundred twenty-eight thousand, two hundred eighty-five".