123256465 has 8 divisors (see below), whose sum is σ = 152679168. Its totient is φ = 95424240.

The previous prime is 123256457. The next prime is 123256489. The reversal of 123256465 is 564652321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123256465 - 2³ = 123256457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123256465.

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, 397447 + ... + 397756.

It is an arithmetic number, because the mean of its divisors is an integer number (19084896).

Almost surely, 2^123256465 is an apocalyptic number.

It is an amenable number.

123256465 is a deficient number, since it is larger than the sum of its proper divisors (29422703).

123256465 is an equidigital number, since it uses as much as digits as its factorization.

123256465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795239.

The product of its digits is 43200, while the sum is 34.

The square root of 123256465 is about 11102.0928207253. The cubic root of 123256465 is about 497.6643935394.

The spelling of 123256465 in words is "one hundred twenty-three million, two hundred fifty-six thousand, four hundred sixty-five".