123684273 has 16 divisors (see below), whose sum is σ = 183470400. Its totient is φ = 82350720.

The previous prime is 123684269. The next prime is 123684277. The reversal of 123684273 is 372486321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123684269) and next prime (123684277).

It is not a de Polignac number, because 123684273 - 2² = 123684269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123684277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22618 + ... + 27548.

It is an arithmetic number, because the mean of its divisors is an integer number (11466900).

Almost surely, 2^123684273 is an apocalyptic number.

It is an amenable number.

123684273 is a deficient number, since it is larger than the sum of its proper divisors (59786127).

123684273 is an equidigital number, since it uses as much as digits as its factorization.

123684273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869 (or 5863 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 123684273 is about 11121.3431293167. The cubic root of 123684273 is about 498.2395059297.

It can be divided in two parts, 12368 and 4273, that added together give a square (16641 = 129²).

The spelling of 123684273 in words is "one hundred twenty-three million, six hundred eighty-four thousand, two hundred seventy-three".