123005867 has 8 divisors (see below), whose sum is σ = 131304960. Its totient is φ = 114889320.

The previous prime is 123005837. The next prime is 123005933. The reversal of 123005867 is 768500321.

It is a happy number.

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 123005867 - 2⁸ = 123005611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123005837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44243 + ... + 46940.

It is an arithmetic number, because the mean of its divisors is an integer number (16413120).

Almost surely, 2^123005867 is an apocalyptic number.

123005867 is a deficient number, since it is larger than the sum of its proper divisors (8299093).

123005867 is an equidigital number, since it uses as much as digits as its factorization.

123005867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91273.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 123005867 is about 11090.8010080427. The cubic root of 123005867 is about 497.3268904382.

The spelling of 123005867 in words is "one hundred twenty-three million, five thousand, eight hundred sixty-seven".