13693261 has 4 divisors (see below), whose sum is σ = 13701024. Its totient is φ = 13685500.

The previous prime is 13693237. The next prime is 13693283. The reversal of 13693261 is 16239631.

13693261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13693261 - 2¹¹ = 13691213 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 (13693201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (3425256).

Almost surely, 2^13693261 is an apocalyptic number.

It is an amenable number.

13693261 is a deficient number, since it is larger than the sum of its proper divisors (7763).

13693261 is an equidigital number, since it uses as much as digits as its factorization.

13693261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762.

The product of its digits is 5832, while the sum is 31.

The square root of 13693261 is about 3700.4406494362. The cubic root of 13693261 is about 239.2410108260.

The spelling of 13693261 in words is "thirteen million, six hundred ninety-three thousand, two hundred sixty-one".