13918765 has 16 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 9472320.

The previous prime is 13918763. The next prime is 13918777. The reversal of 13918765 is 56781931.

It is not a de Polignac number, because 13918765 - 2¹ = 13918763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13918763) 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 15 ways as a sum of consecutive naturals, for example, 3435 + ... + 6295.

It is an arithmetic number, because the mean of its divisors is an integer number (1202040).

Almost surely, 2^13918765 is an apocalyptic number.

It is an amenable number.

13918765 is a deficient number, since it is larger than the sum of its proper divisors (5313875).

13918765 is a wasteful number, since it uses less digits than its factorization.

13918765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012.

The product of its digits is 45360, while the sum is 40.

The square root of 13918765 is about 3730.7861101918. The cubic root of 13918765 is about 240.5471601824.

The spelling of 13918765 in words is "thirteen million, nine hundred eighteen thousand, seven hundred sixty-five".