123345679 has 8 divisors (see below), whose sum is σ = 126988400. Its totient is φ = 119719296.

The previous prime is 123345653. The next prime is 123345697. The reversal of 123345679 is 976543321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 123345679 - 2⁵ = 123345647 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123349679) 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, 12172 + ... + 19870.

It is an arithmetic number, because the mean of its divisors is an integer number (15873550).

Almost surely, 2^123345679 is an apocalyptic number.

123345679 is a deficient number, since it is larger than the sum of its proper divisors (3642721).

123345679 is an equidigital number, since it uses as much as digits as its factorization.

123345679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169.

The product of its digits is 136080, while the sum is 40.

The square root of 123345679 is about 11106.1099850488. The cubic root of 123345679 is about 497.7844357173.

The spelling of 123345679 in words is "one hundred twenty-three million, three hundred forty-five thousand, six hundred seventy-nine".