147818 has 8 divisors (see below), whose sum is σ = 241920. Its totient is φ = 67180.

The previous prime is 147811. The next prime is 147827. The reversal of 147818 is 818741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×147818² = 43700322248, which contains 22 as substring.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147818.

It is not an unprimeable number, because it can be changed into a prime (147811) by changing a digit.

147818 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3338 + ... + 3381.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2¹⁴⁷⁸¹⁸ is an apocalyptic number.

147818 is a deficient number, since it is larger than the sum of its proper divisors (94102).

147818 is a wasteful number, since it uses less digits than its factorization.

147818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732.

The product of its digits is 1792, while the sum is 29.

The square root of 147818 is about 384.4710652312. The cubic root of 147818 is about 52.8740333512.

The spelling of 147818 in words is "one hundred forty-seven thousand, eight hundred eighteen".