123213886 has 8 divisors (see below), whose sum is σ = 186045264. Its totient is φ = 61198800.

The previous prime is 123213869. The next prime is 123213913. The reversal of 123213886 is 688312321.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 203695 + ... + 204298.

It is an arithmetic number, because the mean of its divisors is an integer number (23255658).

Almost surely, 2^123213886 is an apocalyptic number.

123213886 is a deficient number, since it is larger than the sum of its proper divisors (62831378).

123213886 is a wasteful number, since it uses less digits than its factorization.

123213886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408146.

The product of its digits is 13824, while the sum is 34.

The square root of 123213886 is about 11100.1750436649. The cubic root of 123213886 is about 497.6070808115.

The spelling of 123213886 in words is "one hundred twenty-three million, two hundred thirteen thousand, eight hundred eighty-six".