123613655 has 8 divisors (see below), whose sum is σ = 161821584. Its totient is φ = 89900800.

The previous prime is 123613621. The next prime is 123613663. The reversal of 123613655 is 556316321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123613655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123706 + ... + 1123815.

It is an arithmetic number, because the mean of its divisors is an integer number (20227698).

Almost surely, 2^123613655 is an apocalyptic number.

123613655 is a deficient number, since it is larger than the sum of its proper divisors (38207929).

123613655 is a wasteful number, since it uses less digits than its factorization.

123613655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247537.

The product of its digits is 16200, while the sum is 32.

The square root of 123613655 is about 11118.1677897035. The cubic root of 123613655 is about 498.1446639719.

Adding to 123613655 its reverse (556316321), we get a palindrome (679929976).

The spelling of 123613655 in words is "one hundred twenty-three million, six hundred thirteen thousand, six hundred fifty-five".