123663215 has 12 divisors (see below), whose sum is σ = 160690104. Its totient is φ = 91319904.

The previous prime is 123663193. The next prime is 123663259. The reversal of 123663215 is 512366321.

It is not a de Polignac number, because 123663215 - 2¹⁸ = 123401071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72329 + ... + 74018.

It is an arithmetic number, because the mean of its divisors is an integer number (13390842).

Almost surely, 2^123663215 is an apocalyptic number.

123663215 is a deficient number, since it is larger than the sum of its proper divisors (37026889).

123663215 is a wasteful number, since it uses less digits than its factorization.

123663215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146378 (or 146365 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 123663215 is about 11120.3963508501. The cubic root of 123663215 is about 498.2112282224.

The spelling of 123663215 in words is "one hundred twenty-three million, six hundred sixty-three thousand, two hundred fifteen".