123555696 has 40 divisors (see below), whose sum is σ = 348203904. Its totient is φ = 37440960.

The previous prime is 123555661. The next prime is 123555713. The reversal of 123555696 is 696555321.

It is a congruent number.

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, 116476 + ... + 117531.

Almost surely, 2^123555696 is an apocalyptic number.

123555696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123555696 is an abundant number, since it is smaller than the sum of its proper divisors (224648208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123555696 is a wasteful number, since it uses less digits than its factorization.

123555696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234029 (or 234023 counting only the distinct ones).

The product of its digits is 243000, while the sum is 42.

The square root of 123555696 is about 11115.5609844938. The cubic root of 123555696 is about 498.0667964143.

It can be divided in two parts, 123555 and 696, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 123555696 in words is "one hundred twenty-three million, five hundred fifty-five thousand, six hundred ninety-six".