13049845 has 8 divisors (see below), whose sum is σ = 15874776. Its totient is φ = 10296576.

The previous prime is 13049843. The next prime is 13049887. The reversal of 13049845 is 54894031.

It can be written as a sum of positive squares in 4 ways, for example, as 4157521 + 8892324 = 2039^2 + 2982^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13049845 - 2¹ = 13049843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13049845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13049843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17512 + ... + 18241.

It is an arithmetic number, because the mean of its divisors is an integer number (1984347).

Almost surely, 2^13049845 is an apocalyptic number.

It is an amenable number.

13049845 is a deficient number, since it is larger than the sum of its proper divisors (2824931).

13049845 is an equidigital number, since it uses as much as digits as its factorization.

13049845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35831.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 13049845 is about 3612.4569201584. The cubic root of 13049845 is about 235.4336041625.

The spelling of 13049845 in words is "thirteen million, forty-nine thousand, eight hundred forty-five".