123066399 has 8 divisors (see below), whose sum is σ = 171222912. Its totient is φ = 78477080.

The previous prime is 123066397. The next prime is 123066413. The reversal of 123066399 is 993660321.

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 123066399 - 2¹ = 123066397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123066397) 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, 891717 + ... + 891854.

It is an arithmetic number, because the mean of its divisors is an integer number (21402864).

Almost surely, 2^123066399 is an apocalyptic number.

123066399 is a deficient number, since it is larger than the sum of its proper divisors (48156513).

123066399 is a wasteful number, since it uses less digits than its factorization.

123066399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783597.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 123066399 is about 11093.5296006276. The cubic root of 123066399 is about 497.4084563430.

The spelling of 123066399 in words is "one hundred twenty-three million, sixty-six thousand, three hundred ninety-nine".