12978150 has 48 divisors (see below), whose sum is σ = 33235968. Its totient is φ = 3348000.

The previous prime is 12978139. The next prime is 12978169. The reversal of 12978150 is 5187921.

12978150 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3255 + ... + 6045.

It is an arithmetic number, because the mean of its divisors is an integer number (692416).

Almost surely, 2^12978150 is an apocalyptic number.

12978150 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 12978150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16617984).

12978150 is an abundant number, since it is smaller than the sum of its proper divisors (20257818).

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

12978150 is a wasteful number, since it uses less digits than its factorization.

12978150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2832 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12978150 is about 3602.5199513674. The cubic root of 12978150 is about 235.0016598645.

The spelling of 12978150 in words is "twelve million, nine hundred seventy-eight thousand, one hundred fifty".