13072605 has 64 divisors (see below), whose sum is σ = 26331648. Its totient is φ = 5391360.

The previous prime is 13072603. The next prime is 13072637. The reversal of 13072605 is 50627031.

13072605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13072605 - 2¹ = 13072603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13072601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83187 + ... + 83343.

It is an arithmetic number, because the mean of its divisors is an integer number (411432).

Almost surely, 2^13072605 is an apocalyptic number.

13072605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13072605 is an abundant number, since it is smaller than the sum of its proper divisors (13259043).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13072605 is a wasteful number, since it uses less digits than its factorization.

13072605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13072605 is about 3615.6057583758. The cubic root of 13072605 is about 235.5703965060.

Adding to 13072605 its reverse (50627031), we get a palindrome (63699636).

The spelling of 13072605 in words is "thirteen million, seventy-two thousand, six hundred five".