12549449 has 4 divisors (see below), whose sum is σ = 13690320. Its totient is φ = 11408580.

The previous prime is 12549419. The next prime is 12549457. The reversal of 12549449 is 94494521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12549449 - 2²⁰ = 11500873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12549419) 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, 570419 + ... + 570440.

It is an arithmetic number, because the mean of its divisors is an integer number (3422580).

Almost surely, 2^12549449 is an apocalyptic number.

It is an amenable number.

12549449 is a deficient number, since it is larger than the sum of its proper divisors (1140871).

12549449 is a wasteful number, since it uses less digits than its factorization.

12549449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140870.

The product of its digits is 51840, while the sum is 38.

The square root of 12549449 is about 3542.5201481431. The cubic root of 12549449 is about 232.3850682578.

The spelling of 12549449 in words is "twelve million, five hundred forty-nine thousand, four hundred forty-nine".