123412065 has 16 divisors (see below), whose sum is σ = 225667968. Its totient is φ = 56416896.

The previous prime is 123412063. The next prime is 123412067. The reversal of 123412065 is 560214321.

It is an interprime number because it is at equal distance from previous prime (123412063) and next prime (123412067).

It is not a de Polignac number, because 123412065 - 2¹ = 123412063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123412063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587572 + ... + 587781.

It is an arithmetic number, because the mean of its divisors is an integer number (14104248).

Almost surely, 2^123412065 is an apocalyptic number.

123412065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123412065 is a deficient number, since it is larger than the sum of its proper divisors (102255903).

123412065 is a wasteful number, since it uses less digits than its factorization.

123412065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175368.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 123412065 is about 11109.0982982419. The cubic root of 123412065 is about 497.8737240518.

Adding to 123412065 its reverse (560214321), we get a palindrome (683626386).

The spelling of 123412065 in words is "one hundred twenty-three million, four hundred twelve thousand, sixty-five".