12451049 has 4 divisors (see below), whose sum is σ = 13408836. Its totient is φ = 11493264.

The previous prime is 12451039. The next prime is 12451051. The reversal of 12451049 is 94015421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94015421 = 23 ⋅4087627.

It can be written as a sum of positive squares in 2 ways, for example, as 3258025 + 9193024 = 1805^2 + 3032^2 .

It is a cyclic number.

It is not a de Polignac number, because 12451049 - 2⁸ = 12450793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478874 + ... + 478899.

It is an arithmetic number, because the mean of its divisors is an integer number (3352209).

Almost surely, 2^12451049 is an apocalyptic number.

It is an amenable number.

12451049 is a deficient number, since it is larger than the sum of its proper divisors (957787).

12451049 is an equidigital number, since it uses as much as digits as its factorization.

12451049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957786.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12451049 is about 3528.6043983422. The cubic root of 12451049 is about 231.7760981429.

The spelling of 12451049 in words is "twelve million, four hundred fifty-one thousand, forty-nine".