12930949 has 4 divisors (see below), whose sum is σ = 13246380. Its totient is φ = 12615520.

The previous prime is 12930947. The next prime is 12930959. The reversal of 12930949 is 94903921.

12930949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 980100 + 11950849 = 990^2 + 3457^2 .

It is a cyclic number.

It is not a de Polignac number, because 12930949 - 2¹ = 12930947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12930941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157654 + ... + 157735.

It is an arithmetic number, because the mean of its divisors is an integer number (3311595).

Almost surely, 2^12930949 is an apocalyptic number.

It is an amenable number.

12930949 is a deficient number, since it is larger than the sum of its proper divisors (315431).

12930949 is an equidigital number, since it uses as much as digits as its factorization.

12930949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315430.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 12930949 is about 3595.9628752255. The cubic root of 12930949 is about 234.7164166413.

The spelling of 12930949 in words is "twelve million, nine hundred thirty thousand, nine hundred forty-nine".