123912851 has 8 divisors (see below), whose sum is σ = 130904400. Its totient is φ = 116968320.

The previous prime is 123912839. The next prime is 123912857. The reversal of 123912851 is 158219321.

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 123912851 - 2⁶ = 123912787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123912857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6266 + ... + 16943.

It is an arithmetic number, because the mean of its divisors is an integer number (16363050).

Almost surely, 2^123912851 is an apocalyptic number.

123912851 is a deficient number, since it is larger than the sum of its proper divisors (6991549).

123912851 is a wasteful number, since it uses less digits than its factorization.

123912851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23509.

The product of its digits is 4320, while the sum is 32.

The square root of 123912851 is about 11131.6149322549. The cubic root of 123912851 is about 498.5462452910.

The spelling of 123912851 in words is "one hundred twenty-three million, nine hundred twelve thousand, eight hundred fifty-one".