123148560 has 80 divisors (see below), whose sum is σ = 390671424. Its totient is φ = 32073216.

The previous prime is 123148559. The next prime is 123148583. The reversal of 123148560 is 65841321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4354 + ... + 16286.

Almost surely, 2^123148560 is an apocalyptic number.

123148560 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 123148560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195335712).

123148560 is an abundant number, since it is smaller than the sum of its proper divisors (267522864).

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

123148560 is a wasteful number, since it uses less digits than its factorization.

123148560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992 (or 11986 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 123148560 is about 11097.2320873270. The cubic root of 123148560 is about 497.5191242028.

Adding to 123148560 its reverse (65841321), we get a palindrome (188989881).

The spelling of 123148560 in words is "one hundred twenty-three million, one hundred forty-eight thousand, five hundred sixty".