123645150 has 96 divisors (see below), whose sum is σ = 346049280. Its totient is φ = 32456160.

The previous prime is 123645149. The next prime is 123645161. The reversal of 123645150 is 51546321.

123645150 is a `hidden beast` number, since 1 + 2 + 3 + 645 + 15 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 89767 + ... + 91133.

It is an arithmetic number, because the mean of its divisors is an integer number (3604680).

Almost surely, 2^123645150 is an apocalyptic number.

123645150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123645150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173024640).

123645150 is an abundant number, since it is smaller than the sum of its proper divisors (222404130).

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

123645150 is a wasteful number, since it uses less digits than its factorization.

123645150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1444 counting only the distinct ones).

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

The square root of 123645150 is about 11119.5840749553. The cubic root of 123645150 is about 498.1869671029.

The spelling of 123645150 in words is "one hundred twenty-three million, six hundred forty-five thousand, one hundred fifty".