13681453 has 8 divisors (see below), whose sum is σ = 14130072. Its totient is φ = 13237056.

The previous prime is 13681433. The next prime is 13681469. The reversal of 13681453 is 35418631.

It can be written as a sum of positive squares in 4 ways, for example, as 9753129 + 3928324 = 3123^2 + 1982^2 .

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 13681453 - 2⁹ = 13680941 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 (13681433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6351 + ... + 8227.

It is an arithmetic number, because the mean of its divisors is an integer number (1766259).

Almost surely, 2^13681453 is an apocalyptic number.

It is an amenable number.

13681453 is a deficient number, since it is larger than the sum of its proper divisors (448619).

13681453 is a wasteful number, since it uses less digits than its factorization.

13681453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its digits is 8640, while the sum is 31.

The square root of 13681453 is about 3698.8448196701. The cubic root of 13681453 is about 239.1722234555.

The spelling of 13681453 in words is "thirteen million, six hundred eighty-one thousand, four hundred fifty-three".