123164345 has 4 divisors (see below), whose sum is σ = 147797220. Its totient is φ = 98531472.

The previous prime is 123164323. The next prime is 123164389. The reversal of 123164345 is 543461321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17732521 + 105431824 = 4211^2 + 10268^2 .

It is a cyclic number.

It is not a de Polignac number, because 123164345 - 2¹² = 123160249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12316430 + ... + 12316439.

It is an arithmetic number, because the mean of its divisors is an integer number (36949305).

Almost surely, 2^123164345 is an apocalyptic number.

It is an amenable number.

123164345 is a deficient number, since it is larger than the sum of its proper divisors (24632875).

123164345 is an equidigital number, since it uses as much as digits as its factorization.

123164345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24632874.

The product of its digits is 8640, while the sum is 29.

The square root of 123164345 is about 11097.9432779232. The cubic root of 123164345 is about 497.5403803827.

It can be divided in two parts, 12316 and 4345, that added together give a palindrome (16661).

The spelling of 123164345 in words is "one hundred twenty-three million, one hundred sixty-four thousand, three hundred forty-five".