123005045 has 8 divisors (see below), whose sum is σ = 147751296. Its totient is φ = 98307216.

The previous prime is 123005009. The next prime is 123005089. The reversal of 123005045 is 540500321.

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 123005045 - 2⁸ = 123004789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6257 + ... + 16886.

It is an arithmetic number, because the mean of its divisors is an integer number (18468912).

Almost surely, 2^123005045 is an apocalyptic number.

It is an amenable number.

123005045 is a deficient number, since it is larger than the sum of its proper divisors (24746251).

123005045 is a wasteful number, since it uses less digits than its factorization.

123005045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24211.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 123005045 is about 11090.7639502426. The cubic root of 123005045 is about 497.3257826222.

Adding to 123005045 its reverse (540500321), we get a palindrome (663505366).

The spelling of 123005045 in words is "one hundred twenty-three million, five thousand, forty-five".