12949146 has 80 divisors (see below), whose sum is σ = 34964160. Its totient is φ = 3499200.

The previous prime is 12949117. The next prime is 12949147. The reversal of 12949146 is 64194921.

It is a happy number.

12949146 is a `hidden beast` number, since 129 + 491 + 46 = 666.

12949146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12949146.

It is not an unprimeable number, because it can be changed into a prime (12949147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21246 + ... + 21846.

It is an arithmetic number, because the mean of its divisors is an integer number (437052).

Almost surely, 2^12949146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12949146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17482080).

12949146 is an abundant number, since it is smaller than the sum of its proper divisors (22015014).

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

12949146 is a wasteful number, since it uses less digits than its factorization.

12949146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 632 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12949146 is about 3598.4921842349. The cubic root of 12949146 is about 234.8264661225.

It can be divided in two parts, 1294 and 9146, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 12949146 in words is "twelve million, nine hundred forty-nine thousand, one hundred forty-six".