13782541 has 4 divisors (see below), whose sum is σ = 13852000. Its totient is φ = 13713084.

The previous prime is 13782499. The next prime is 13782551. The reversal of 13782541 is 14528731.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13782541 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 (13782551) 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 3 ways as a sum of consecutive naturals, for example, 34431 + ... + 34828.

It is an arithmetic number, because the mean of its divisors is an integer number (3463000).

Almost surely, 2^13782541 is an apocalyptic number.

It is an amenable number.

13782541 is a deficient number, since it is larger than the sum of its proper divisors (69459).

13782541 is an equidigital number, since it uses as much as digits as its factorization.

13782541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69458.

The product of its digits is 6720, while the sum is 31.

The square root of 13782541 is about 3712.4844780820. The cubic root of 13782541 is about 239.7598349815.

The spelling of 13782541 in words is "thirteen million, seven hundred eighty-two thousand, five hundred forty-one".