12730149 has 8 divisors (see below), whose sum is σ = 18859520. Its totient is φ = 8486748.

The previous prime is 12730121. The next prime is 12730153. The reversal of 12730149 is 94103721.

12730149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12730149 - 2¹⁷ = 12599077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 471487 = 12730149 / (1 + 2 + 7 + 3 + 0 + 1 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235717 + ... + 235770.

It is an arithmetic number, because the mean of its divisors is an integer number (2357440).

Almost surely, 2^12730149 is an apocalyptic number.

It is an amenable number.

12730149 is a deficient number, since it is larger than the sum of its proper divisors (6129371).

12730149 is an equidigital number, since it uses as much as digits as its factorization.

12730149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471496 (or 471490 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12730149 is about 3567.9334354777. The cubic root of 12730149 is about 233.4951310911.

It can be divided in two parts, 127 and 30149, that added together give a square (30276 = 174²).

The spelling of 12730149 in words is "twelve million, seven hundred thirty thousand, one hundred forty-nine".