12130649 has 2 divisors, whose sum is σ = 12130650. Its totient is φ = 12130648.

The previous prime is 12130631. The next prime is 12130667. The reversal of 12130649 is 94603121.

12130649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12130631) and next prime (12130667).

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 2271049 = 3140^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 12130649 - 2¹⁶ = 12065113 is a prime.

It is a super-2 number, since 2×12130649² = 294305290322402, which contains 22 as substring.

It is equal to p₇₉₆₀₄₀ and since 12130649 and 796040 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12130609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065324 + 6065325.

It is an arithmetic number, because the mean of its divisors is an integer number (6065325).

Almost surely, 2^12130649 is an apocalyptic number.

It is an amenable number.

12130649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12130649 is an equidigital number, since it uses as much as digits as its factorization.

12130649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12130649 is about 3482.9081239677. The cubic root of 12130649 is about 229.7707166867.

The spelling of 12130649 in words is "twelve million, one hundred thirty thousand, six hundred forty-nine".