13249005 has 32 divisors (see below), whose sum is σ = 26431488. Its totient is φ = 5505600.

The previous prime is 13249003. The next prime is 13249007. The reversal of 13249005 is 50094231.

It is an interprime number because it is at equal distance from previous prime (13249003) and next prime (13249007).

It is not a de Polignac number, because 13249005 - 2¹ = 13249003 is a prime.

It is a super-2 number, since 2×13249005² = 351072266980050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13249003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4581 + ... + 6890.

It is an arithmetic number, because the mean of its divisors is an integer number (825984).

Almost surely, 2^13249005 is an apocalyptic number.

13249005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13249005 is a deficient number, since it is larger than the sum of its proper divisors (13182483).

13249005 is a wasteful number, since it uses less digits than its factorization.

13249005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11497.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 13249005 is about 3639.9182683132. The cubic root of 13249005 is about 236.6252511893.

The spelling of 13249005 in words is "thirteen million, two hundred forty-nine thousand, five".