13601405 has 8 divisors (see below), whose sum is σ = 16848384. Its totient is φ = 10530000.

The previous prime is 13601389. The next prime is 13601407. The reversal of 13601405 is 50410631.

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

It is not a de Polignac number, because 13601405 - 2⁴ = 13601389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13601407) 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, 43721 + ... + 44030.

It is an arithmetic number, because the mean of its divisors is an integer number (2106048).

Almost surely, 2^13601405 is an apocalyptic number.

It is an amenable number.

13601405 is a deficient number, since it is larger than the sum of its proper divisors (3246979).

13601405 is an equidigital number, since it uses as much as digits as its factorization.

13601405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87787.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13601405 is about 3688.0082700558. The cubic root of 13601405 is about 238.7048579254.

The spelling of 13601405 in words is "thirteen million, six hundred one thousand, four hundred five".