618147 has 6 divisors (see below), whose sum is σ = 892892. Its totient is φ = 412092.

The previous prime is 618131. The next prime is 618161. The reversal of 618147 is 741816.

It is a happy number.

618147 is a `hidden beast` number, since 618 + 1 + 47 = 666.

It is not a de Polignac number, because 618147 - 2⁴ = 618131 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 618147.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 618147.

It is not an unprimeable number, because it can be changed into a prime (618347) 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 5 ways as a sum of consecutive naturals, for example, 34333 + ... + 34350.

2⁶¹⁸¹⁴⁷ is an apocalyptic number.

618147 is a deficient number, since it is larger than the sum of its proper divisors (274745).

618147 is a wasteful number, since it uses less digits than its factorization.

618147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68689 (or 68686 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 618147 is about 786.2232507373. The cubic root of 618147 is about 85.1851557819.

The spelling of 618147 in words is "six hundred eighteen thousand, one hundred forty-seven".