123164860 has 192 divisors, whose sum is σ = 343203840. Its totient is φ = 36080640.

The previous prime is 123164849. The next prime is 123164869. The reversal of 123164860 is 68461321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123164869) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2087511 + ... + 2087569.

It is an arithmetic number, because the mean of its divisors is an integer number (1787520).

Almost surely, 2^123164860 is an apocalyptic number.

123164860 is a gapful number since it is divisible by the number (10) 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 123164860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171601920).

123164860 is an abundant number, since it is smaller than the sum of its proper divisors (220038980).

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

123164860 is a wasteful number, since it uses less digits than its factorization.

123164860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 123164860 is about 11097.9664803963. The cubic root of 123164860 is about 497.5410738544.

The spelling of 123164860 in words is "one hundred twenty-three million, one hundred sixty-four thousand, eight hundred sixty".