123860655 has 24 divisors (see below), whose sum is σ = 221619840. Its totient is φ = 63927360.

The previous prime is 123860641. The next prime is 123860699. The reversal of 123860655 is 556068321.

123860655 is a `hidden beast` number, since 12 + 38 + 606 + 5 + 5 = 666.

It is not a de Polignac number, because 123860655 - 2¹⁵ = 123827887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43000 + ... + 45789.

It is an arithmetic number, because the mean of its divisors is an integer number (9234160).

Almost surely, 2^123860655 is an apocalyptic number.

123860655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123860655 is a deficient number, since it is larger than the sum of its proper divisors (97759185).

123860655 is a wasteful number, since it uses less digits than its factorization.

123860655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88831 (or 88828 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 123860655 is about 11129.2701917062. The cubic root of 123860655 is about 498.4762343270.

The spelling of 123860655 in words is "one hundred twenty-three million, eight hundred sixty thousand, six hundred fifty-five".