123565260 has 288 divisors, whose sum is σ = 448846272. Its totient is φ = 25159680.

The previous prime is 123565241. The next prime is 123565271. The reversal of 123565260 is 62565321.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2025630 + ... + 2025690.

It is an arithmetic number, because the mean of its divisors is an integer number (1558494).

Almost surely, 2^123565260 is an apocalyptic number.

123565260 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 123565260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224423136).

123565260 is an abundant number, since it is smaller than the sum of its proper divisors (325281012).

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

123565260 is a wasteful number, since it uses less digits than its factorization.

123565260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 123565260 is about 11115.9911838756. The cubic root of 123565260 is about 498.0796472665.

The spelling of 123565260 in words is "one hundred twenty-three million, five hundred sixty-five thousand, two hundred sixty".