12452549 has 4 divisors (see below), whose sum is σ = 12465036. Its totient is φ = 12440064.

The previous prime is 12452537. The next prime is 12452621. The reversal of 12452549 is 94525421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94525421 = 139 ⋅680039.

It can be written as a sum of positive squares in 2 ways, for example, as 11175649 + 1276900 = 3343^2 + 1130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12452549 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 (12452149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4604 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (3116259).

Almost surely, 2^12452549 is an apocalyptic number.

It is an amenable number.

12452549 is a deficient number, since it is larger than the sum of its proper divisors (12487).

12452549 is a wasteful number, since it uses less digits than its factorization.

12452549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12486.

The product of its digits is 14400, while the sum is 32.

The square root of 12452549 is about 3528.8169405624. The cubic root of 12452549 is about 231.7854052619.

The spelling of 12452549 in words is "twelve million, four hundred fifty-two thousand, five hundred forty-nine".