13249605 has 8 divisors (see below), whose sum is σ = 21199392. Its totient is φ = 7066448.

The previous prime is 13249583. The next prime is 13249609. The reversal of 13249605 is 50694231.

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 13249605 - 2⁸ = 13249349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13249609) 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, 441639 + ... + 441668.

It is an arithmetic number, because the mean of its divisors is an integer number (2649924).

Almost surely, 2^13249605 is an apocalyptic number.

13249605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13249605 is a deficient number, since it is larger than the sum of its proper divisors (7949787).

13249605 is an equidigital number, since it uses as much as digits as its factorization.

13249605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883315.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13249605 is about 3640.0006868131. Note that the first 3 decimals coincide. The cubic root of 13249605 is about 236.6288231055.

The spelling of 13249605 in words is "thirteen million, two hundred forty-nine thousand, six hundred five".