13049549 has 4 divisors (see below), whose sum is σ = 13107264. Its totient is φ = 12991836.

The previous prime is 13049497. The next prime is 13049551. The reversal of 13049549 is 94594031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94594031 = 7 ⋅13513433.

It is a cyclic number.

It is not a de Polignac number, because 13049549 - 2¹² = 13045453 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 (13049749) 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, 28517 + ... + 28970.

It is an arithmetic number, because the mean of its divisors is an integer number (3276816).

Almost surely, 2^13049549 is an apocalyptic number.

It is an amenable number.

13049549 is a deficient number, since it is larger than the sum of its proper divisors (57715).

13049549 is an equidigital number, since it uses as much as digits as its factorization.

13049549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57714.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 13049549 is about 3612.4159505793. The cubic root of 13049549 is about 235.4318240935.

The spelling of 13049549 in words is "thirteen million, forty-nine thousand, five hundred forty-nine".