13649005 has 8 divisors (see below), whose sum is σ = 17091072. Its totient is φ = 10444368.

The previous prime is 13649003. The next prime is 13649033. The reversal of 13649005 is 50094631.

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 13649005 - 2¹ = 13649003 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 (13649003) 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, 59229 + ... + 59458.

It is an arithmetic number, because the mean of its divisors is an integer number (2136384).

Almost surely, 2^13649005 is an apocalyptic number.

It is an amenable number.

13649005 is a deficient number, since it is larger than the sum of its proper divisors (3442067).

13649005 is a wasteful number, since it uses less digits than its factorization.

13649005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118715.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 13649005 is about 3694.4559816027. The cubic root of 13649005 is about 238.9829939523.

It can be divided in two parts, 136 and 49005, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 13649005 in words is "thirteen million, six hundred forty-nine thousand, five".