123551064 has 192 divisors, whose sum is σ = 418017600. Its totient is φ = 32099328.

The previous prime is 123551017. The next prime is 123551093. The reversal of 123551064 is 460155321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 714082 + ... + 714254.

It is an arithmetic number, because the mean of its divisors is an integer number (2177175).

Almost surely, 2^123551064 is an apocalyptic number.

123551064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123551064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209008800).

123551064 is an abundant number, since it is smaller than the sum of its proper divisors (294466536).

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

123551064 is a wasteful number, since it uses less digits than its factorization.

123551064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 123551064 is about 11115.3526259854. The cubic root of 123551064 is about 498.0605723003.

The spelling of 123551064 in words is "one hundred twenty-three million, five hundred fifty-one thousand, sixty-four".