123005015 has 16 divisors (see below), whose sum is σ = 171072000. Its totient is φ = 83156640.

The previous prime is 123005009. The next prime is 123005089. The reversal of 123005015 is 510500321.

It is not a de Polignac number, because 123005015 - 2¹⁸ = 122742871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123004984 and 123005002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22265 + ... + 27234.

It is an arithmetic number, because the mean of its divisors is an integer number (10692000).

Almost surely, 2^123005015 is an apocalyptic number.

123005015 is a deficient number, since it is larger than the sum of its proper divisors (48066985).

123005015 is an equidigital number, since it uses as much as digits as its factorization.

123005015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49582.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 123005015 is about 11090.7625977658. The cubic root of 123005015 is about 497.3257421908.

Adding to 123005015 its reverse (510500321), we get a palindrome (633505336).

The spelling of 123005015 in words is "one hundred twenty-three million, five thousand, fifteen".