123385169 has 8 divisors (see below), whose sum is σ = 128208960. Its totient is φ = 118599376.

The previous prime is 123385159. The next prime is 123385193. The reversal of 123385169 is 961583321.

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 123385169 - 2⁴ = 123385153 is a prime.

It is a super-2 number, since 2×123385169² = 30447799858317122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123385159) 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, 2789 + ... + 15954.

It is an arithmetic number, because the mean of its divisors is an integer number (16026120).

Almost surely, 2^123385169 is an apocalyptic number.

It is an amenable number.

123385169 is a deficient number, since it is larger than the sum of its proper divisors (4823791).

123385169 is a wasteful number, since it uses less digits than its factorization.

123385169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18999.

The product of its digits is 38880, while the sum is 38.

The square root of 123385169 is about 11107.8876929865. The cubic root of 123385169 is about 497.8375531297.

The spelling of 123385169 in words is "one hundred twenty-three million, three hundred eighty-five thousand, one hundred sixty-nine".