123147 has 8 divisors (see below), whose sum is σ = 182480. Its totient is φ = 82080.

The previous prime is 123143. The next prime is 123169. The reversal of 123147 is 741321.

It is not a de Polignac number, because 123147 - 2² = 123143 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 123147.

It is not an unprimeable number, because it can be changed into a prime (123143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254 + ... + 2307.

It is an arithmetic number, because the mean of its divisors is an integer number (22810).

2¹²³¹⁴⁷ is an apocalyptic number.

123147 is a deficient number, since it is larger than the sum of its proper divisors (59333).

123147 is an equidigital number, since it uses as much as digits as its factorization.

123147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570 (or 4564 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 123147 is about 350.9230684922. The cubic root of 123147 is about 49.7517023398.

Adding to 123147 its reverse (741321), we get a palindrome (864468).

It can be divided in two parts, 12314 and 7, that added together give a palindrome (12321).

The spelling of 123147 in words is "one hundred twenty-three thousand, one hundred forty-seven", and thus it is an iban number.