123606564 has 12 divisors (see below), whose sum is σ = 288415344. Its totient is φ = 41202184.

The previous prime is 123606563. The next prime is 123606583. The reversal of 123606564 is 465606321.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (123606563) by changing a digit.

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, 5150262 + ... + 5150285.

It is an arithmetic number, because the mean of its divisors is an integer number (24034612).

Almost surely, 2^123606564 is an apocalyptic number.

It is an amenable number.

123606564 is an abundant number, since it is smaller than the sum of its proper divisors (164808780).

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

123606564 is a wasteful number, since it uses less digits than its factorization.

123606564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10300554 (or 10300552 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 123606564 is about 11117.8488926590. The cubic root of 123606564 is about 498.1351385642.

The spelling of 123606564 in words is "one hundred twenty-three million, six hundred six thousand, five hundred sixty-four".