12720150 has 72 divisors (see below), whose sum is σ = 35689680. Its totient is φ = 3241920.

The previous prime is 12720133. The next prime is 12720157. The reversal of 12720150 is 5102721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720157) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9736 + ... + 10964.

It is an arithmetic number, because the mean of its divisors is an integer number (495690).

Almost surely, 2^12720150 is an apocalyptic number.

12720150 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 12720150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17844840).

12720150 is an abundant number, since it is smaller than the sum of its proper divisors (22969530).

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

12720150 is a wasteful number, since it uses less digits than its factorization.

12720150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12720150 is about 3566.5319289192. The cubic root of 12720150 is about 233.4339815225.

Adding to 12720150 its reverse (5102721), we get a palindrome (17822871).

The spelling of 12720150 in words is "twelve million, seven hundred twenty thousand, one hundred fifty".